General

  • Target

    XClient.exe

  • Size

    54KB

  • Sample

    241109-1tyebswlbn

  • MD5

    f54070cb3f8967ad80f93d00a02a52ea

  • SHA1

    ddef9179a43fd625d5c3f04c8f1919379de7e480

  • SHA256

    eb8db18db280b1d68aa5aaa05d4d6f4bdfcf9921609d2c80915f8db2bb386a0e

  • SHA512

    a605105bec3ccc2d6cb204c5ef27247653abc41ff1ef5bc5e739e19dc7308f33f136c338c94683f2cd8d97458e63298dd98b36571bde261862e2a301755a8f7d

  • SSDEEP

    1536:om+BiZLw0HucpDIKBqCVzbiucbq0LSgZ6+LG8Or/1wB:keLicpEdQzbiur0LhS8OreB

Malware Config

Extracted

Family

xworm

Version

3.1

C2

147.185.221.23:53631

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      XClient.exe

    • Size

      54KB

    • MD5

      f54070cb3f8967ad80f93d00a02a52ea

    • SHA1

      ddef9179a43fd625d5c3f04c8f1919379de7e480

    • SHA256

      eb8db18db280b1d68aa5aaa05d4d6f4bdfcf9921609d2c80915f8db2bb386a0e

    • SHA512

      a605105bec3ccc2d6cb204c5ef27247653abc41ff1ef5bc5e739e19dc7308f33f136c338c94683f2cd8d97458e63298dd98b36571bde261862e2a301755a8f7d

    • SSDEEP

      1536:om+BiZLw0HucpDIKBqCVzbiucbq0LSgZ6+LG8Or/1wB:keLicpEdQzbiur0LhS8OreB

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • 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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks