New Banking Trojan CHAVECLOAK Targets Brazilian Users via Phishing Tactics
Mar 11, 2024
Phishing Attack / Mobile Security
Users in Brazil are the target of a new banking trojan known as CHAVECLOAK that's propagated via phishing emails bearing PDF attachments. "This intricate attack involves the PDF downloading a ZIP file and subsequently utilizing DLL side-loading techniques to execute the final malware," Fortinet FortiGuard Labs researcher Cara Lin said . The attack chain involves the use of contract-themed DocuSign lures to trick users into opening PDF files containing a button to read and sign the documents. In reality, clicking the button leads to the retrieval of an installer file from a remote link that's shortened using the Goo.su URL shortening service. Present within the installer is an executable named "Lightshot.exe" that leverages DLL side-loading to load "Lightshot.dll," which is the CHAVECLOAK malware that facilitates the theft of sensitive information. This includes gathering system metadata and running checks to determine whether the compromis...
