General

  • Target
    coin.b.bat
  • Size 91KB
  • Sample240525-rcvsfafe67
  • SHA256 91813779ab003d08ee337226c9ba845aaca64098e9740e6aaf30a0c8fa833ee0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

C2
  • continue-silk.gl.at.ply.gg:58347

  • 127.0.0.1:58347

Attributes
  • Install_directory

    %Temp%

  • install_file

    steamwebhelper.exe

Targets

    • Target
      coin.b.bat
    • Size 91KB
    • SHA256 91813779ab003d08ee337226c9ba845aaca64098e9740e6aaf30a0c8fa833ee0
    • MD5 SHA1 SHA512 SSDEEP
    • 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 and hide display window.

    • 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.

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks