General

  • Target
    2.exe
  • Size 48KB
  • Sample261102-dkpdqszwgt
  • SHA256 ba5f4d0bad88b67619e6e1c687f9e1b5874fc95905f7885a358df4391d86c761
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • neptunerat

C2
  • 23.tcp.cpolar.top:12649

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    lR0gMGJ4C08hyTTW

  • rat_name

    MasonRAT

Targets

    • Target
      2.exe
    • Size 48KB
    • SHA256 ba5f4d0bad88b67619e6e1c687f9e1b5874fc95905f7885a358df4391d86c761
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detects NeptuneRAT stealer

    • Family: NeptuneRAT, MasonRAT

      NeptuneRAT aka MasonRAT is a trojan written in C#.

    • Modifies Windows Defender Real-time Protection settings

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Checks computer location settings

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

    • Disables automatic submission of suspicious files to Microsoft by Windows Defender

      Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

    • Executes dropped EXE

MITRE ATT&CK Enterprise v16

Tasks