General

  • Target

    XClient.exe

  • Size

    40KB

  • Sample

    241120-y659laxlbn

  • MD5

    3fc8ebe25bcbbd30b13cb1a3485b717c

  • SHA1

    7601489d02993c56e9daef4e92ad0dfa9203be9d

  • SHA256

    ae196511801b93ea866668e8809353855e02e74953feedc975838e2198c5113f

  • SHA512

    9c89e794cc24062b3f66883037d56d1b84504027443a5b958be42d731171ad1b802ca0cbc86b459f10839ecce650028524cc4c4f8f4386fe0952850e5ab4abb7

  • SSDEEP

    768:eIDwCrxY4mpc9i32v6hCuuJf27ZZfFWPG9/Xy6OOwhtjGb1:vDwCFY4gckGwCuuJfKFv9/C6OOwTCp

Malware Config

Extracted

Family

xworm

Version

5.0

C2

10.9.248.138:37366

Mutex

28akBJlQFVHD777A

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    MicrosoftDefender.exe

aes.plain

Targets

    • Target

      XClient.exe

    • Size

      40KB

    • MD5

      3fc8ebe25bcbbd30b13cb1a3485b717c

    • SHA1

      7601489d02993c56e9daef4e92ad0dfa9203be9d

    • SHA256

      ae196511801b93ea866668e8809353855e02e74953feedc975838e2198c5113f

    • SHA512

      9c89e794cc24062b3f66883037d56d1b84504027443a5b958be42d731171ad1b802ca0cbc86b459f10839ecce650028524cc4c4f8f4386fe0952850e5ab4abb7

    • SSDEEP

      768:eIDwCrxY4mpc9i32v6hCuuJf27ZZfFWPG9/Xy6OOwhtjGb1:vDwCFY4gckGwCuuJfKFv9/C6OOwTCp

    • 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

MITRE ATT&CK Enterprise v15

Tasks