Resubmissions

06/03/2025, 14:33

250306-rw458azzdv 10

06/03/2025, 14:29

250306-rtqvtazygz 10

General

  • Target

    XClient.exe

  • Size

    34KB

  • Sample

    250306-rw458azzdv

  • MD5

    420aaab8a4e68d5730a9e19422a0fe96

  • SHA1

    f4dd350f797169f22c8efd7de8a252b7d2fcf8ae

  • SHA256

    d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded

  • SHA512

    fa1ccd03397231387559381aa7762e786b98fa89c02a8b09b6804a14ed0a3ce45ba11bb6b5f7a112a2420a3bd25f708f2ebc4afb281c377dc372fca563e63f98

  • SSDEEP

    768:0e749/qEkLACVVickCVFy19JZ6aO/hoq/:XaCEk8hcdF49JZ6aO/CQ

Malware Config

Extracted

Family

xworm

Version

3.1

C2

association-lectures.gl.at.ply.gg:32463

known-savage.gl.at.ply.gg:45116

Mutex

Gpg1PP1lxuWY9X4X

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain

Targets

    • Target

      XClient.exe

    • Size

      34KB

    • MD5

      420aaab8a4e68d5730a9e19422a0fe96

    • SHA1

      f4dd350f797169f22c8efd7de8a252b7d2fcf8ae

    • SHA256

      d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded

    • SHA512

      fa1ccd03397231387559381aa7762e786b98fa89c02a8b09b6804a14ed0a3ce45ba11bb6b5f7a112a2420a3bd25f708f2ebc4afb281c377dc372fca563e63f98

    • SSDEEP

      768:0e749/qEkLACVVickCVFy19JZ6aO/hoq/:XaCEk8hcdF49JZ6aO/CQ

    • 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

    • Loads dropped DLL

    • Adds Run key to start application

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks