General

  • Target

    Loader.bat

  • Size

    104KB

  • Sample

    240511-bp25aafg34

  • MD5

    7fc0ade272e72950b17312800d3a164f

  • SHA1

    1322639f28ae59bfa090755c5ac09d460aa2a40f

  • SHA256

    8ae27496f90c7506e7286c1830888f72949cac5c9b11511bedb306bd1b65ce05

  • SHA512

    0404d760289fbec4473ad136c2888fb58bcd6c006e388e09e776cfc09a9391f6a01649b6dc4d64234eb6767769f0505f24cbaf4f3df982c520387a80a2197a8b

  • SSDEEP

    1536:e/gfIGE9HwAJ8Gelpb6Rnzq91HSTcHtIrIMgvp3EFQ940EKG1d+kYh:e2mQA+J6Bqv1IrIM+EFQ940EKiW

Malware Config

Extracted

Family

xworm

C2

continue-silk.gl.at.ply.gg:58347

127.0.0.1:58347

Attributes
  • Install_directory

    %AppData%

  • install_file

    steamwebhelper.exe

Targets

    • Target

      Loader.bat

    • Size

      104KB

    • MD5

      7fc0ade272e72950b17312800d3a164f

    • SHA1

      1322639f28ae59bfa090755c5ac09d460aa2a40f

    • SHA256

      8ae27496f90c7506e7286c1830888f72949cac5c9b11511bedb306bd1b65ce05

    • SHA512

      0404d760289fbec4473ad136c2888fb58bcd6c006e388e09e776cfc09a9391f6a01649b6dc4d64234eb6767769f0505f24cbaf4f3df982c520387a80a2197a8b

    • SSDEEP

      1536:e/gfIGE9HwAJ8Gelpb6Rnzq91HSTcHtIrIMgvp3EFQ940EKG1d+kYh:e2mQA+J6Bqv1IrIM+EFQ940EKiW

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • 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 v15

Tasks