General

  • Target
    888Cry55pto_18Layer_DefenderKill.exe
  • Size 16.0MB
  • Sample260808-fwae3atzct
  • SHA256 730afe6605cfb0e3791276199c49d2af11585c5d470ee6f4c318040faf53f1a7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

C2
  • 7326.info:2686

Attributes
  • install_file

    USB.exe

  • localhost

    127.0.0.1

Targets

    • Target
      888Cry55pto_18Layer_DefenderKill.exe
    • Size 16.0MB
    • SHA256 730afe6605cfb0e3791276199c49d2af11585c5d470ee6f4c318040faf53f1a7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies security service

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • A potential corporate email address has been identified in the URL: [email protected]

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Modifies Security services

      Modifies the startup behavior of a security service.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks