General

  • Target
    eaa.exe
  • Size 2.9MB
  • Sample260326-aayymsds7p
  • SHA256 483167a861fe737dc2c60534033e147bdf17363e6a21e44650a2ac9997f0982f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://github.com/charlie-60/R/raw/refs/heads/main/MasonRootkit.exe

  • exe.dropper

    https://raw.githubusercontent.com/ninhpn1337/Disable-Windows-Defender/main/source.bat

Extracted

Family
  • neptunerat

C2
  • 143.14.44.58:18954

Targets

    • Target
      eaa.exe
    • Size 2.9MB
    • SHA256 483167a861fe737dc2c60534033e147bdf17363e6a21e44650a2ac9997f0982f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects NeptuneRAT stealer

    • NeptuneRAT, MasonRAT

      NeptuneRAT aka MasonRAT is a trojan written in C#.

    • Neptunerat family

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks