General

  • Target

    https://github.com/Mask0ffice/test/releases/download/Release/V.4.rar

  • Sample

    230502-qewxvabb63

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1100952450866872421/Xu1bf44d28OS23uvm8rjaC6uF9ATIO4ARNdovXCv6hPOeYmQ1pEgZNnqr8fQ_7r5pCDx

Targets

    • Target

      https://github.com/Mask0ffice/test/releases/download/Release/V.4.rar

    • Stealerium

      An open source info stealer written in C# first seen in May 2022.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Registers COM server for autorun

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v6

Tasks