Brazilian Hackers | Breaking Cybersecurity News | The Hacker News

Brazilian banking institutions are the target of a new campaign that distributes a custom variant of the Windows-based AllaKore remote access trojan (RAT) called AllaSenha . The malware is "specifically aimed at stealing credentials that are required to access Brazilian bank accounts, [and] leverages Azure cloud as command-and-control (C2) infrastructure," French cybersecurity company HarfangLab said in a technical analysis. Targets of the campaign include banks such as Banco do Brasil, Bradesco, Banco Safra, Caixa Econômica Federal, Itaú Unibanco, Sicoob, and Sicredi. The initial access vector, though not definitively confirmed, points towards the use of malicious links in phishing messages. The starting point of the attack is a malicious Windows shortcut (LNK) file that masquerades as a PDF document ("NotaFiscal.pdf.lnk") hosted on a WebDAV server since at least March 2024. There is also evidence to suggest that the threat actors behind the activity previous...

An unknown cybercrime threat actor has been observed targeting Spanish- and Portuguese-speaking victims to compromise online banking accounts in Mexico, Peru, and Portugal. "This threat actor employs tactics such as LOLBaS (living-off-the-land binaries and scripts), along with CMD-based scripts to carry out its malicious activities," the BlackBerry Research and Intelligence Team  said  in a report published last week. The cybersecurity company attributed the campaign, dubbed Operation CMDStealer , to a Brazilian threat actor based on an analysis of the artifacts. The attack chain primarily leverages social engineering, banking on Portuguese and Spanish emails containing tax- or traffic violation-themed lures to trigger the infections and gain unauthorized access to victims' systems. The emails come fitted with an HTML attachment that contains obfuscated code to fetch the next-stage payload from a remote server in the form of a RAR archive file. The files, which are...

A Brazilian threat actor is targeting more than 30 Portuguese financial institutions with information-stealing malware as part of a long-running campaign that commenced in 2021. "The attackers can steal credentials and exfiltrate users' data and personal information, which can be leveraged for malicious activities beyond financial gain," SentinelOne researchers Aleksandar Milenkoski and Tom Hegel  said  in a new report shared with The Hacker News. The cybersecurity firm, which began tracking "Operation Magalenha" earlier this year, said the intrusions culminate in the deployment of two variants of a backdoor called  PeepingTitle  so as to "maximize attack potency." The links to Brazil stem from the use of the Brazilian-Portuguese language within the detected artifacts as well as source code overlaps with another banking trojan known as  Maxtrilha , which was first disclosed in September 2021. PeepingTitle, like Maxtrilha, is written in the Delphi...

A new Android banking trojan has set its eyes on Brazilian financial institutions to commit fraud by leveraging the PIX payments platform. Italian cybersecurity company Cleafy, which discovered the malware between the end of 2022 and the beginning of 2023, is tracking it under the name PixPirate. "PixPirate belongs to the newest generation of Android banking trojan, as it can perform ATS ( Automatic Transfer System ), enabling attackers to automate the insertion of a malicious money transfer over the instant payment platform PIX, adopted by multiple Brazilian banks," researchers Francesco Iubatti and Alessandro Strino  said . It is also the latest addition in a long list of Android banking malware to abuse the operating system's accessibility services API to carry out its nefarious functions, including disabling Google Play Protect, intercepting SMS messages, preventing uninstallation, and serving rogue ads via push notifications. Besides stealing passwords entered ...

Banking apps from Brazil are being targeted by a more elusive and stealthier version of an Android remote access trojan (RAT) that's capable of carrying out financial fraud attacks by stealing two-factor authentication (2FA) codes and initiating rogue transactions from infected devices to transfer money from victims' accounts to an account operated by the threat actor. IBM X-Force dubbed the revamped banking malware BrazKing , a previous version of which was referred to as  PixStealer  by Check Point Research. The mobile RAT was first seen around November 2018,  according  to ThreatFabric. "It turns out that its developers have been working on making the malware more agile than before, moving its core overlay mechanism to pull fake overlay screens from the command-and-control (C2) server in real-time," IBM X-Force researcher Shahar Tavor  noted  in a technical deep dive published last week. "The malware […] allows the attacker to log keystrokes, extract ...

Two newly discovered malicious Android applications on Google Play Store have been used to target users of Brazil's instant payment ecosystem in a likely attempt to lure victims into fraudulently transferring their entire account balances into another bank account under cybercriminals' control. "The attackers distributed two different variants of banking malware, named PixStealer and MalRhino , through two separate malicious applications […] to carry out their attacks," Check Point Research said in an analysis shared with The Hacker News. "Both malicious applications were designed to steal money of victims through user interaction and the original PIX application." The two apps in question, which were uncovered in April 2021, have since been removed from the app store. Launched in November 2020 by the Central Bank of Brazil, the country's monetary authority,  Pix  is a state-owned payments platform that enables consumers and companies to make mone...