General

  • Target

    XClient.exe

  • Size

    42KB

  • Sample

    250125-zxmasszngw

  • MD5

    d050f2d0dc9d5164b947691216f38718

  • SHA1

    9934fd9007bfdd2c1bb01287ee1faaedc4d1451b

  • SHA256

    4da3bf8fbe28b89c7bbfe4c0ef6cebaf7be4505d00d97c6f452fbe1dca76e5c9

  • SHA512

    f435373c1baed0a5377b86a62b373f2c2c4ce8d95fbd3e82b9de6503f566c5149c2644b7a19e05004f8714736de15fa71a801483b2129bc67ea47508eee4c469

  • SSDEEP

    768:F5sWQjOZCn30H3oJeYhkS3xFPw9BYO6rOphSPuUno6:F5sWZZCEYhzBFY9SO6rOpUBo6

Malware Config

Extracted

Family

xworm

Version

5.0

C2

music-challenges.gl.at.ply.gg:12929

Mutex

XKCa4jg1HAhWF9ov

Attributes
  • Install_directory

    %AppData%

  • install_file

    SubDir.exe

aes.plain

Targets

    • Target

      XClient.exe

    • Size

      42KB

    • MD5

      d050f2d0dc9d5164b947691216f38718

    • SHA1

      9934fd9007bfdd2c1bb01287ee1faaedc4d1451b

    • SHA256

      4da3bf8fbe28b89c7bbfe4c0ef6cebaf7be4505d00d97c6f452fbe1dca76e5c9

    • SHA512

      f435373c1baed0a5377b86a62b373f2c2c4ce8d95fbd3e82b9de6503f566c5149c2644b7a19e05004f8714736de15fa71a801483b2129bc67ea47508eee4c469

    • SSDEEP

      768:F5sWQjOZCn30H3oJeYhkS3xFPw9BYO6rOphSPuUno6:F5sWZZCEYhzBFY9SO6rOpUBo6

    • 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