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Category — South Korea
APT-C-60 Group Exploit WPS Office Flaw to Deploy SpyGlace Backdoor

APT-C-60 Group Exploit WPS Office Flaw to Deploy SpyGlace Backdoor

Aug 28, 2024 Cyber Attack / Vulnerability
A South Korea-aligned cyber espionage has been linked to the zero-day exploitation of a now-patched critical remote code execution flaw in Kingsoft WPS Office to deploy a bespoke backdoor dubbed SpyGlace. The activity has been attributed to a threat actor dubbed APT-C-60 , according to cybersecurity firms ESET and DBAPPSecurity. The attacks have been found to infect Chinese and East Asian users with malware. The security flaw in question is CVE-2024-7262 (CVSS score: 9.3), which stems from a lack of proper validation of user-provided file paths. This loophole essentially allows an adversary to upload an arbitrary Windows library and achieve remote code execution. The bug "allows code execution via hijacking the control flow of the WPS Office plugin component promecefpluginhost.exe," ESET said , adding it found another way to achieve the same effect. The second vulnerability is tracked as CVE-2024-7263 (CVSS score: 9.3). The attack conceived by APT-C-60 weaponizes the
South Korean ERP Vendor's Server Hacked to Spread Xctdoor Malware

South Korean ERP Vendor's Server Hacked to Spread Xctdoor Malware

Jul 03, 2024 Malware / Threat Intelligence
An unnamed South Korean enterprise resource planning (ERP) vendor's product update server has been found to be compromised to deliver a Go-based backdoor dubbed Xctdoor. The AhnLab Security Intelligence Center (ASEC), which identified the attack in May 2024, did not attribute it to a known threat actor or group, but noted that the tactics overlap with that of Andariel , a sub-cluster within the infamous Lazarus Group. The similarities stem from the North Korean adversary's prior use of the ERP solution to distribute malware like HotCroissant – which is identical to Rifdoor – in 2017 by inserting a malicious routine into a software update program. In the recent incident analyzed by ASEC, the same executable is said to have been tampered with to execute a DLL file from a specific path using the regsvr32.exe process as opposed to launching a downloader. The DLL file, Xctdoor, is capable of stealing system information, including keystrokes, screenshots, and clipboard conte
How to Get Going with CTEM When You Don't Know Where to Start

How to Get Going with CTEM When You Don't Know Where to Start

Oct 04, 2024Vulnerability Management / Security Posture
Continuous Threat Exposure Management (CTEM) is a strategic framework that helps organizations continuously assess and manage cyber risk. It breaks down the complex task of managing security threats into five distinct stages: Scoping, Discovery, Prioritization, Validation, and Mobilization. Each of these stages plays a crucial role in identifying, addressing, and mitigating vulnerabilities - before they can be exploited by attackers.  On paper, CTEM sounds great . But where the rubber meets the road – especially for CTEM neophytes - implementing CTEM can seem overwhelming. The process of putting CTEM principles into practice can look prohibitively complex at first. However, with the right tools and a clear understanding of each stage, CTEM can be an effective method for strengthening your organization's security posture.  That's why I've put together a step-by-step guide on which tools to use for which stage. Want to learn more? Read on… Stage 1: Scoping  When you're defin
Andariel Hackers Target South Korean Institutes with New Dora RAT Malware

Andariel Hackers Target South Korean Institutes with New Dora RAT Malware

Jun 03, 2024 Malware / Cyber Attack
The North Korea-linked threat actor known as Andariel has been observed using a new Golang-based backdoor called Dora RAT in its attacks targeting educational institutes, manufacturing firms, and construction businesses in South Korea. "Keylogger, Infostealer, and proxy tools on top of the backdoor were utilized for the attacks," the AhnLab Security Intelligence Center (ASEC) said in a report published last week. "The threat actor probably used these malware strains to control and steal data from the infected systems." The attacks are characterized by the use of a vulnerable Apache Tomcat server to distribute the malware, the South Korean cybersecurity firm added, noting the system in question ran the 2013 version of Apache Tomcat, making it susceptible to several vulnerabilities. Andariel, also known by the names Nickel Hyatt, Onyx Sleet, and Silent Chollima, is an advanced persistent threat (APT) group that operates on behalf of North Korea's strategic
cyber security

The State of SaaS Security 2024 Report

websiteAppOmniSaaS Security / Data Security
Learn the latest SaaS security trends and discover how to boost your cyber resilience. Get your free…
North Korean Hackers Deploy New Golang Malware 'Durian' Against Crypto Firms

North Korean Hackers Deploy New Golang Malware 'Durian' Against Crypto Firms

May 10, 2024 Malware / Cyber Espionage
The North Korean threat actor tracked as Kimsuky has been observed deploying a previously undocumented Golang-based malware dubbed  Durian  as part of highly-targeted cyber attacks aimed at two South Korean cryptocurrency firms. "Durian boasts comprehensive backdoor functionality, enabling the execution of delivered commands, additional file downloads, and exfiltration of files," Kaspersky  said  in its APT trends report for Q1 2024. The attacks, which occurred in August and November 2023, entailed the use of legitimate software exclusive to South Korea as an infection pathway, although the precise mechanism used to manipulate the program is currently unclear. What's known is that the software establishes a connection to the attacker's server, leading to the retrieval of a malicious payload that kicks off the infection sequence. The first-stage serves as an installer for additional malware and a means to establish persistence on the host. It also paves the way fo
South Korean Citizen Detained in Russia on Cyber Espionage Charges

South Korean Citizen Detained in Russia on Cyber Espionage Charges

Mar 12, 2024 Cyber Espionage / Threat
Russia has detained a South Korean national for the first time on cyber espionage charges and transferred from Vladivostok to Moscow for further investigation. The development was  first reported  by Russian news agency TASS. "During the investigation of an espionage case, a South Korean citizen Baek Won-soon was identified and detained in Vladivostok, and put into custody under a court order," an unnamed source was quoted as saying. Won-soon has been accused of handing over classified "top secret" information to unnamed foreign intelligence agencies. According to the agency, Won-soon was detained in Vladivostok earlier this year and shifted to Moscow late last month. He is said to be currently at the Lefortovo pretrial detention center. His arrest has been extended for another three months, until June 15, 2024. The  detention center  is currently also the  place  where American journalist Evan Gershkovich is  being held , awaiting trial on suspicion of espionage. Gershkovich ha
FakeCalls Vishing Malware Targets South Korean Users via Popular Financial Apps

FakeCalls Vishing Malware Targets South Korean Users via Popular Financial Apps

Mar 17, 2023 Mobile Security / Scam Alert
An Android voice phishing (aka vishing) malware campaign known as FakeCalls has reared its head once again to target South Korean users under the guise of over 20 popular financial apps. "FakeCalls malware possesses the functionality of a Swiss army knife, able not only to conduct its primary aim but also to extract private data from the victim's device," cybersecurity firm Check Point said . FakeCalls was previously documented by Kaspersky in April 2022, describing the malware's capabilities to imitate phone conversations with a bank customer support agent. In the observed attacks, users who install the rogue banking app are enticed into calling the financial institution by offering a fake low-interest loan. At the point where the phone call actually happens, a pre-recorded audio with instructions from the real bank is played. Simultaneously, the malware conceals the phone number with the bank's legitimate number to give the impression that a conversation
Interpol Seized $130 Million from Cybercriminals in Global "HAECHI-III" Crackdown Operation

Interpol Seized $130 Million from Cybercriminals in Global "HAECHI-III" Crackdown Operation

Nov 25, 2022
Interpol on Thursday  announced  the seizure of $130 million worth of virtual assets in connection with a global crackdown on cyber-enabled financial crimes and money laundering. The international police operation, dubbed  HAECHI-III , transpired between June 28 and November 23, 2022, resulting in the arrests of 975 individuals and the closure of more than 1,600 cases. This comprised two fugitives wanted by South Korea for their supposed involvement in a Ponzi scheme to embezzle €28 million from 2,000 victims. Another instance pertained to a call center scam based out of India, wherein a group of criminals impersonated Interpol and Europol officers to trick victims in Austria into transferring funds. The call centers operated from New Delhi and Noida. The illegal activity informed the victims that their "identities were stolen and crime pertaining to narcotics drugs were committed in their names," forcing them to make a money transfer. "In order to clear themselve
Kimsuky Hackers Spotted Using 3 New Android Malware to Target South Koreans

Kimsuky Hackers Spotted Using 3 New Android Malware to Target South Koreans

Oct 26, 2022
The North Korean espionage-focused actor known as Kimsuky has been observed using three different Android malware strains to target users located in its southern counterpart. That's according to findings from South Korean cybersecurity company S2W, which named the malware families FastFire, FastViewer, and FastSpy. "The FastFire malware is disguised as a Google security plugin, and the FastViewer malware disguises itself as 'Hancom Office Viewer,' [while] FastSpy is a remote access tool based on  AndroSpy ," researchers Lee Sebin and Shin Yeongjae  said . Kimsuky, also known by the names Black Banshee, Thallium, and Velvet Chollima, is believed to be tasked by the North Korean regime with a global intelligence-gathering mission, disproportionately targeting individuals and organizations in South Korea, Japan, and the U.S. This past August, Kaspersky unearthed a previously undocumented infection chain dubbed  GoldDragon  to deploy a Windows backdoor capable o
Hackers Exploiting VMware Horizon to Target South Korea with NukeSped Backdoor

Hackers Exploiting VMware Horizon to Target South Korea with NukeSped Backdoor

May 20, 2022
The North Korea-backed Lazarus Group has been observed leveraging the  Log4Shell vulnerability  in VMware Horizon servers to deploy the NukeSped (aka Manuscrypt) implant against targets located in its southern counterpart. "The attacker used the Log4j vulnerability on VMware Horizon products that were not applied with the security patch," AhnLab Security Emergency Response Center (ASEC)  said  in a new report. The intrusions are said to have been first discovered in April, although  multiple threat actors , including those aligned with  China  and  Iran , have employed the same approach to further their objectives over the past few months. NukeSped is a backdoor that can perform various malicious activities based on commands received from a remote attacker-controlled domain. Last year, Kaspersky disclosed a spear-phishing campaign aimed at stealing critical data from defense companies using a NukeSped variant called  ThreatNeedle . Some of the key functions of the bac
South Korean DarkHotel Hackers Targeted Luxury Hotels in Macau

South Korean DarkHotel Hackers Targeted Luxury Hotels in Macau

Mar 21, 2022
Luxury hotels in the Chinese special administrative region of Macau were the target of a malicious spear-phishing campaign from the second half of November 2021 and through mid-January 2022. Cybersecurity firm Trellix  attributed  the campaign with moderate confidence to a suspected South Korean advanced persistent threat (APT) tracked as DarkHotel, building on research previously published by  Zscaler  in December 2021. Believed to be active since 2007, DarkHotel has a history of striking "senior business executives by uploading malicious code to their computers through infiltrated hotel Wi-Fi networks, as well as through spear-phishing and P2P attacks," Zscaler researchers Sahil Antil and Sudeep Singh said. Prominent sectors targeted include law enforcement, pharmaceuticals, and automotive manufacturers. The attack chains involved distributing email messages directed to individuals in executive roles in the hotel, such as the vice president of human resources, assistan
Master Key for Hive Ransomware Retrieved Using a Flaw in its Encryption Algorithm

Master Key for Hive Ransomware Retrieved Using a Flaw in its Encryption Algorithm

Feb 20, 2022
Researchers have detailed what they call the "first successful attempt" at decrypting data infected with Hive ransomware without relying on the private key used to lock access to the content. "We were able to recover the master key for generating the file encryption key without the attacker's private key, by using a cryptographic vulnerability identified through analysis," a group of academics from South Korea's Kookmin University  said  in a new paper dissecting its encryption process. Hive, like other cybercriminal groups, operates a ransomware-as-a-service that uses different mechanisms to compromise business networks, exfiltrate data, and encrypt data on the networks, and attempts to collect a ransom in exchange for access to the decryption software. It was  first observed  in June 2021, when it struck a company called Altus Group. Hive leverages a variety of initial compromise methods, including vulnerable RDP servers, compromised VPN credentials,
PseudoManuscrypt Malware Spreading the Same Way as CryptBot Targets Koreans

PseudoManuscrypt Malware Spreading the Same Way as CryptBot Targets Koreans

Feb 18, 2022
Numerous Windows machines located in South Korea have been targeted by a botnet tracked as PseudoManuscrypt since at least May 2021 by employing the same delivery tactics of another malware called CryptBot . "PseudoManuscrypt is disguised as an installer that is similar to a form of  CryptBot , and is being distributed," South Korean cybersecurity company AhnLab Security Emergency Response Center (ASEC)  said  in a report published today. "Not only is its file form similar to CryptBot, but it is also distributed via malicious sites exposed on the top search page when users search commercial software-related illegal programs such as Crack and Keygen," it added. According to ASEC, around 30 computers in the country are being consistently infected on a daily basis on average. PseudoManuscrypt was first documented by Russian cybersecurity firm Kaspersky in December 2021, when it  disclosed  details of a "mass-scale spyware attack campaign" infecting mo
Researchers Discover PhoneSpy Malware Spying on South Korean Citizens

Researchers Discover PhoneSpy Malware Spying on South Korean Citizens

Nov 10, 2021
An ongoing mobile spyware campaign has been uncovered snooping on South Korean residents using a family of 23 malicious Android apps to siphon sensitive information and gain remote control of the devices. "With more than a thousand South Korean victims, the malicious group behind this invasive campaign has had access to all the data, communications, and services on their devices," Zimperium researcher Aazim Yaswant said. "The victims were broadcasting their private information to the malicious actors with zero indication that something was amiss." The Dallas-based mobile security company dubbed the campaign " PhoneSpy ." Zimperium did not attribute the spyware to a known threat actor. "The evidence surrounding PhoneSpy shows a familiar framework that has been passed around for years, updated by individuals and shared within private communities and back channels until assembled into what we see in this variation today," Richard Melick, the co
North Korea Exploited VPN Flaw to Hack South's Nuclear Research Institute

North Korea Exploited VPN Flaw to Hack South's Nuclear Research Institute

Jun 19, 2021
South Korea's state-run Korea Atomic Energy Research Institute (KAERI) on Friday disclosed that its internal network was infiltrated by suspected attackers operating out of its northern counterpart. The intrusion is said to have taken place on May 14 through a vulnerability in an unnamed virtual private network (VPN) vendor and involved a  total of 13 IP addresses , one of which — "27.102.114[.]89" — has been previously linked to a state-sponsored threat actor dubbed  Kimsuky . KAERI, established in 1959 and situated in the city of Daejeon, is a government-funded research institute that designs and develops nuclear technologies related to reactors, fuel rods, radiation fusion, and nuclear safety. Following the intrusion, the think tank said it took steps to block the attacker's IP addresses in question and applied necessary security patches to the vulnerable VPN solution. "Currently, the Atomic Energy Research Institute is investigating the subject of the ha
Researchers Uncover Hacking Operations Targeting Government Entities in South Korea

Researchers Uncover Hacking Operations Targeting Government Entities in South Korea

Jun 02, 2021
A North Korean threat actor active since 2012 has been behind a new espionage campaign targeting high-profile government officials associated with its southern counterpart to install an Android and Windows backdoor for collecting sensitive information. Cybersecurity firm Malwarebytes attributed the activity to a threat actor tracked as Kimsuky, with the targeted entities comprising of the Ministry of Foreign Affairs, Ambassador of the Embassy of Sri Lanka to the State, International Atomic Energy Agency (IAEA) Nuclear Security Officer, and the Deputy Consul General at Korean Consulate General in Hong Kong. The attacks also involved collecting information about other organizations and universities in the country, including the Korea Internet and Security Agency (KISA), Seoul National University, and Daishin Securities. Malwarebytes, however, noted that there is no evidence of active targeting or compromise by the adversary. The development is only the latest in a series of surveil
ALERT: North Korean hackers targeting South Korea with RokRat Trojan

ALERT: North Korean hackers targeting South Korea with RokRat Trojan

Jan 08, 2021
A North Korean hacking group has been found deploying the RokRat Trojan in a new spear-phishing campaign targeting the South Korean government. Attributing the attack to  APT37  (aka Starcruft, Ricochet Chollima, or Reaper), Malwarebytes said it identified a malicious document last December that, when opened, executes a macro in memory to install the aforementioned remote access tool (RAT). "The file contains an embedded macro that uses a VBA self decoding technique to decode itself within the memory spaces of Microsoft Office without writing to the disk. It then embeds a variant of the RokRat into Notepad," the researchers  noted  in a Wednesday analysis. Believed to be active at least since 2012, the  Reaper APT  is known for its focus on public and private entities primarily in South Korea, such as chemicals, electronics, manufacturing, aerospace, automotive, and healthcare entities. Since then, their victimology has expanded beyond the Korean peninsula to include Ja
Researchers Link 'Sharpshooter' Cyber Attacks to North Korean Hackers

Researchers Link 'Sharpshooter' Cyber Attacks to North Korean Hackers

Mar 04, 2019
Security researchers have finally, with "high confidence," linked a previously discovered global cyber espionage campaign targeting critical infrastructure around the world to a North Korean APT hacking group. Thanks to the new evidence collected by researchers after analyzing a command-and-control (C2) server involved in the espionage campaign and seized by law enforcement. Dubbed Operation Sharpshooter , the cyber espionage campaign targeting government, defense, nuclear, energy, and financial organizations around the world was initially uncovered in December 2018 by security researchers at McAfee. At that time, even after finding numerous technical links to the North Korean Lazarus hacking group , researchers were not able to immediately attribute the campaign due to a potential for false flags. Researchers Analysed Sharpshooter's Command Server Now, according to a press release shared with The Hacker News, a recent analysis of the seized code and command
FBI issues alert over two new malware linked to Hidden Cobra hackers

FBI issues alert over two new malware linked to Hidden Cobra hackers

May 30, 2018
The US-CERT has released a joint technical alert from the DHS and the FBI, warning about two newly identified malware being used by the prolific North Korean APT hacking group known as Hidden Cobra. Hidden Cobra, often known as Lazarus Group and Guardians of Peace, is believed to be backed by the North Korean government and known to launch attacks against media organizations, aerospace, financial and critical infrastructure sectors across the world. The group was even associated with the WannaCry ransomware menace that last year shut down hospitals and businesses worldwide. It is reportedly also linked to the 2014 Sony Pictures hack , as well as the SWIFT Banking attack in 2016. Now, the Department of Homeland Security (DHS) and the FBI have uncovered two new pieces of malware that Hidden Cobra has been using since at least 2009 to target companies working in the media, aerospace, financial, and critical infrastructure sectors across the world. The malware Hidden Cobra is
New Android Malware Secretly Records Phone Calls and Steals Private Data

New Android Malware Secretly Records Phone Calls and Steals Private Data

Apr 03, 2018
Security researchers at Cisco Talos have uncovered variants of a new Android Trojan that are being distributed in the wild disguising as a fake anti-virus application, dubbed "Naver Defender." Dubbed KevDroid , the malware is a remote administration tool (RAT) designed to steal sensitive information from compromised Android devices, as well as capable of recording phone calls. Talos researchers published Monday technical details about two recent variants of KevDroid detected in the wild, following the initial discovery of the Trojan by South Korean cybersecurity firm ESTsecurity two weeks ago. Though researchers haven't attributed the malware to any hacking or state-sponsored group, South Korean media have linked KevDroid with North Korea state-sponsored cyber espionage hacking group " Group 123 ," primarily known for targeting South Korean targets. The most recent variant of KevDroid malware, detected in March this year, has the following capabilit
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