General

  • Target

    rayt.exe

  • Size

    71KB

  • Sample

    241201-3sjkwsxrfy

  • MD5

    93cf6a22a726178ebf1f234c39434c98

  • SHA1

    42514ec5b65967f84c52a6d205dd7711eee8b341

  • SHA256

    bc93a47532a5d590cc44003f2b97288d9313f640ea4c5efedd08f24b30352a43

  • SHA512

    07cec1f11d16368e8ebc23f4cd62215e96f08c988e25c1867440d4b64560874f03bbae830c07295ed53b75fe0b27573d3a6701dc4a1879a0555569eeae511883

  • SSDEEP

    1536:p3Bt+oepi0dGGPstCQXgubzu27z6IQAOLz4NCj:RBd5GPsJbzDZ1OLz9j

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7777

Attributes
  • Install_directory

    %AppData%

  • install_file

    System32.exe

Targets

    • Target

      rayt.exe

    • Size

      71KB

    • MD5

      93cf6a22a726178ebf1f234c39434c98

    • SHA1

      42514ec5b65967f84c52a6d205dd7711eee8b341

    • SHA256

      bc93a47532a5d590cc44003f2b97288d9313f640ea4c5efedd08f24b30352a43

    • SHA512

      07cec1f11d16368e8ebc23f4cd62215e96f08c988e25c1867440d4b64560874f03bbae830c07295ed53b75fe0b27573d3a6701dc4a1879a0555569eeae511883

    • SSDEEP

      1536:p3Bt+oepi0dGGPstCQXgubzu27z6IQAOLz4NCj:RBd5GPsJbzDZ1OLz9j

    • 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