General

  • Target
    Reg2026.vbs
  • Size 4.2MB
  • Sample260728-cz7cesxtaz
  • SHA256 392d0c5232ff4b9ba747b8b8db862a4a97f01f672fb1bcb10925274d5e829f8c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 172.111.136.159:6000

Mutex
  • 1oqImtjgDPdtzHjV

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target
      Reg2026.vbs
    • Size 4.2MB
    • SHA256 392d0c5232ff4b9ba747b8b8db862a4a97f01f672fb1bcb10925274d5e829f8c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Detects DonutLoader

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Executes a VBScript file via the Windows Script Host.

MITRE ATT&CK Enterprise v16

Tasks