General

  • Target

    test.exe

  • Size

    41KB

  • Sample

    241117-lcylfaxaqp

  • MD5

    14ba5e24c48fdb89869f74ef6b39fb91

  • SHA1

    ee472017864227ba1b16bd0becb71e213012b4af

  • SHA256

    4ecf9e1e2dc279254aefa5a1e3befa0b7d46e9a255fc153aa36fc46329a881ee

  • SHA512

    ead6a3c7156322b99c48f39ad808661c6c0758017c07ddb542c067f4b3746f90e5b8158b7e9bc68f85e534cc83b7da5c74496e546740cfa3d4ff0eecf6fa2dbc

  • SSDEEP

    768:FV396FPL5Qskay6WJF5Pa9ORM6cOwhG33X7N:btojyfacFY9AM6cOwQH5

Malware Config

Extracted

Family

xworm

Version

5.0

C2

vshostupdater.duckdns.org:1177

http://vshostupdater.duckdns.org:1177

Mutex

wUXlZfe2ZEy8St4a

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    Steam_Service.exe

aes.plain

Targets

    • Target

      test.exe

    • Size

      41KB

    • MD5

      14ba5e24c48fdb89869f74ef6b39fb91

    • SHA1

      ee472017864227ba1b16bd0becb71e213012b4af

    • SHA256

      4ecf9e1e2dc279254aefa5a1e3befa0b7d46e9a255fc153aa36fc46329a881ee

    • SHA512

      ead6a3c7156322b99c48f39ad808661c6c0758017c07ddb542c067f4b3746f90e5b8158b7e9bc68f85e534cc83b7da5c74496e546740cfa3d4ff0eecf6fa2dbc

    • SSDEEP

      768:FV396FPL5Qskay6WJF5Pa9ORM6cOwhG33X7N:btojyfacFY9AM6cOwQH5

    • 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.

    • 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