General

  • Target
    Celestria Loader.bat
  • Size 339KB
  • Sample240619-vfdvwayern
  • SHA256 6f95c2ae1d09a753abc184534a2ff8989c56fcceffaf084e0cc34ea53b5ca9c8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

C2
  • runderscore00-37568.portmap.host:37568

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    USB.exe

Targets

    • Target
      Celestria Loader.bat
    • Size 339KB
    • SHA256 6f95c2ae1d09a753abc184534a2ff8989c56fcceffaf084e0cc34ea53b5ca9c8
    • 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.

    • Deletes itself

    • 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