General

  • Target

    XClient.exe

  • Size

    79KB

  • Sample

    241117-x6tp5awmbx

  • MD5

    9201f8cf2c137f4803588d270d08c362

  • SHA1

    e136c079f29364731b96e72752d95daaa2f7f831

  • SHA256

    0a279b10c9275eb70ef94843fc547db50eaf547ca08e68bb74d1f6e78e30c92d

  • SHA512

    294060a08512430755f76028fe881cf1ac63e07a34d3882ba1c672fc1d2c998a2a8ebc0109c162759dfe327e85d2b6b0d32867deffa769392975969e9f6a5067

  • SSDEEP

    1536:C7+e+C/iiSeQ1oxACbS9zARGdwd60ZbhXOP6C0Ry:C7+2ihfquCbS9tYZb9OPdiy

Malware Config

Extracted

Family

xworm

C2

147.185.221.23:38042

Attributes
  • Install_directory

    %AppData%

  • install_file

    SystemUser32.exe

Targets

    • Target

      XClient.exe

    • Size

      79KB

    • MD5

      9201f8cf2c137f4803588d270d08c362

    • SHA1

      e136c079f29364731b96e72752d95daaa2f7f831

    • SHA256

      0a279b10c9275eb70ef94843fc547db50eaf547ca08e68bb74d1f6e78e30c92d

    • SHA512

      294060a08512430755f76028fe881cf1ac63e07a34d3882ba1c672fc1d2c998a2a8ebc0109c162759dfe327e85d2b6b0d32867deffa769392975969e9f6a5067

    • SSDEEP

      1536:C7+e+C/iiSeQ1oxACbS9zARGdwd60ZbhXOP6C0Ry:C7+2ihfquCbS9tYZb9OPdiy

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • 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