General

  • Target

    c9IDU7463.exe

  • Size

    971KB

  • Sample

    241120-y9f4waxlfm

  • MD5

    26efc684ddd0782b295a6ee4a76e3256

  • SHA1

    08cc73ef5c1b02e09765181a5acee1a7018dcffc

  • SHA256

    bf832f28b8d9f2ff077f691bd7e8a2cf46f3a4ac0ee8ee2d2f2944089abd20ab

  • SHA512

    20ba9e73514148613943db974cf88874907f9fe19e1cf5d81d9bf83ffbd233be80e925c62a5430a7ef69099e603ae54d60680020e0de58e632897f8c4aecfb49

  • SSDEEP

    24576:5tVd1nnqxDvo1QtHCX1LcsRt0ni/V27INjQL:5tVDnquatHCX1Lcs422kpQL

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      c9IDU7463.exe

    • Size

      971KB

    • MD5

      26efc684ddd0782b295a6ee4a76e3256

    • SHA1

      08cc73ef5c1b02e09765181a5acee1a7018dcffc

    • SHA256

      bf832f28b8d9f2ff077f691bd7e8a2cf46f3a4ac0ee8ee2d2f2944089abd20ab

    • SHA512

      20ba9e73514148613943db974cf88874907f9fe19e1cf5d81d9bf83ffbd233be80e925c62a5430a7ef69099e603ae54d60680020e0de58e632897f8c4aecfb49

    • SSDEEP

      24576:5tVd1nnqxDvo1QtHCX1LcsRt0ni/V27INjQL:5tVDnquatHCX1Lcs422kpQL

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks