Pasta.7z

The "Pasta.7z" archive is a delivery mechanism for credential-harvesting malware. It exploits user trust through social engineering, utilizing high-ratio compression ( .7z ) to bypass basic email filters that primarily scan for .zip or .exe extensions. Once extracted and executed, the payload initiates a multi-stage infection process designed to exfiltrate sensitive data. Technical Analysis

: Deploy EDR (Endpoint Detection and Response) solutions to identify the behavioral patterns of process hollowing and unauthorized data exfiltration. Pasta.7z

: The .7z format is chosen for its ability to hide malicious code from signature-based detection. The archive usually contains a single executable ( .exe ) or a heavily obfuscated JavaScript/VBScript loader. The "Pasta

: The user runs the internal file, which often uses a "double extension" (e.g., invoice_copy.pdf.exe ) to appear harmless. Capabilities : Technical Analysis : Deploy EDR (Endpoint Detection and

: The user receives an email with a subject like "Payment Advice" or "Shipping Documents." Extraction : The user extracts "Pasta.7z."

: Scrapes passwords from web browsers, FTP clients, and email platforms.

: The malware often hollows out legitimate Windows processes (like RegAsm.exe or vbc.exe ) to hide its activity in memory. Mitigation and Defense