Overview

overview

10

Static

static

10

MasonClientt.exe

windows10-2004-x64

10

MasonClientt.exe

windows11-ltsc_2024-x64

Sharing

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General

  • Target
    MasonClientt.exe
  • Size 48KB
  • Sample260907-gsbdmaxzds
  • SHA256 30a6a415c8d52a4f4a236242d1ff03fd1873c0e12099eef776756e8ae880f2ca
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
neptuneratbootkitdefense_evasiondiscoveryexecutionpersistencetrojan

Malware Config

Extracted

Family

  • neptunerat

C2

  • tqdclbdloe.localto.net:1967

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    cZR1msl8Oa06S4BY

  • rat_name

    MasonRAT

Targets

    • Target
      MasonClientt.exe
    • Size 48KB
    • SHA256 30a6a415c8d52a4f4a236242d1ff03fd1873c0e12099eef776756e8ae880f2ca
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    bootkitdefense_evasiondiscoveryexecutionneptuneratpersistencetrojan

    • Detects NeptuneRAT stealer

    • Family: NeptuneRAT, MasonRAT

      NeptuneRAT aka MasonRAT is a trojan written in C#.

      trojanneptunerat

    • Checks computer location settings

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

    • Executes dropped EXE

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks