Overview

overview

10

Static

static

10

MasonClient.exe

windows10-2004-x64

10

MasonClient.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    MasonClient.exe
  • Size 51KB
  • Sample260930-tl8f1acb64
  • SHA256 b10a59d83e6073561d1200375abe94c1057e3da302a853629ec1bad7137aa7ac
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
neptuneratdiscoveryexecutionpersistencetrojan

Malware Config

Extracted

Family

  • neptunerat

C2

  • 6.tcp.cpolar.cn:12804

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    XYNWBDmtrStEZgaP

  • rat_name

    MasonRAT

Targets

    • Target
      MasonClient.exe
    • Size 51KB
    • SHA256 b10a59d83e6073561d1200375abe94c1057e3da302a853629ec1bad7137aa7ac
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryexecutionneptuneratpersistencetrojan

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks