General

  • Target

    11a5b2700194e4f062fb7dadf9ab9267bdf64ed9bb0ae9cb6bc787fcdb1ee48b.img

  • Size

    1.2MB

  • Sample

    250305-ckmdpsvycy

  • MD5

    ff07facb25c4e4659d5753b8125412d4

  • SHA1

    d1a3bb897d6f503ffe0f55e44b30af30c180914a

  • SHA256

    11a5b2700194e4f062fb7dadf9ab9267bdf64ed9bb0ae9cb6bc787fcdb1ee48b

  • SHA512

    75b8cb31559aabe2b39a54a3c6393fb27d57a39048498830a123e1c512e0a69e4086485ac9cfe1d5a54f1f127c0cb5f658fcee2aa33b4119edeeb3bda247958f

  • SSDEEP

    12288:C/Yp50g7ZeK50g72OVVyEqJUhkPbwoxC0WLU/1RQIXp0W:/p5F7AK5F7PV8jJUhoC0WIdRZ

Malware Config

Extracted

Family

xworm

Version

3.1

C2

193.23.160.31:1760

Mutex

H1hx0NXdYm1SIVHw

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain

Targets

    • Target

      PO81025.exe

    • Size

      551KB

    • MD5

      5ed7cd000af88d1d45ab776014efc310

    • SHA1

      90aafc2ab9d80ee249ec8ce2482156c2964e1231

    • SHA256

      86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f

    • SHA512

      74a7ee091fd3d5e9ade00011874b8c7f216b06845925a174b44dc399ca8f435939c1607ea7ed75cc4329a8a0023a0fb5423dde05739bc78b19109c23a3dc95fd

    • SSDEEP

      12288:0/Yp50g7ZeK50g72OVVyEqJUhkPbwoxC0WLU/1RQIXp0W:Jp5F7AK5F7PV8jJUhoC0WIdRZ

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks