General

  • Target
    2026-08-12_aa90c8566901be87fa9b1a595e99c679_cobalt-strike_glassworm_icedid_luca-stealer_njrat
  • Size 31.5MB
  • Sample260812-h2xtnack2z
  • SHA256 ef248d0a27e4d7eb9c22e96f103fc24b24d3c56b7598d5e43def6ae3cbe8e480
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • neptunerat

C2
  • 6.tcp.cpolar.cn:13498

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    goqdlGdjwqoRUqml

  • rat_name

    MasonRAT

Targets

    • Target
      2026-08-12_aa90c8566901be87fa9b1a595e99c679_cobalt-strike_glassworm_icedid_luca-stealer_njrat
    • Size 31.5MB
    • SHA256 ef248d0a27e4d7eb9c22e96f103fc24b24d3c56b7598d5e43def6ae3cbe8e480
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects NeptuneRAT stealer

    • Family: NeptuneRAT, MasonRAT

      NeptuneRAT aka MasonRAT is a trojan written in C#.

    • Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers

    • Detects executables containing SQL queries to confidential data stores. Observed in infostealers

    • 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

    • Loads dropped DLL

    • Prevents Microsoft Defender from scanning certain paths by adding an exclusion.

      Uses the Powershell Add-MpPreference cmdlet to exclude paths from being scanned by Microsoft Defender.

MITRE ATT&CK Enterprise v16

Tasks