Overview

overview

10

Static

static

10

MasonClient.exe

windows11-21h2-x64

10

MasonClient.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    MasonClient.exe
  • Size 48KB
  • Sample261002-ft23aszyfx
  • SHA256 53e1937f4da91cba67cdd16397fe006e30847f82f444fca6a3aa745cd29c553e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
neptuneratdiscoveryexecutionpersistencetrojan

Malware Config

Extracted

Family

  • neptunerat

C2

  • 30.tcp.cpolar.top:14990

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    MY2pb6LoZ9nxMCo4

  • rat_name

    MasonRAT

Targets

    • Target
      MasonClient.exe
    • Size 48KB
    • SHA256 53e1937f4da91cba67cdd16397fe006e30847f82f444fca6a3aa745cd29c553e
    • 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

    • 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.

      execution

    • Executes dropped EXE

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks