Overview

overview

10

Static

static

10

MasonClient.exe

windows10-2004-x64

10

MasonClient.exe

windows11-ltsc_2024-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    MasonClient.exe
  • Size 55KB
  • Sample260811-ec2jrsvfrh
  • SHA256 ce5141cb63a62f5f0f47a578a02e202528fca8c041b09ca50215b0db6925dfc4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
neptuneratdiscoverytrojan

Malware Config

Extracted

Family

  • neptunerat

C2

  • 143.14.44.56:1417

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    wLkLoAjtDIvORlfP

  • rat_name

    MasonRAT

Targets

    • Target
      MasonClient.exe
    • Size 55KB
    • SHA256 ce5141cb63a62f5f0f47a578a02e202528fca8c041b09ca50215b0db6925dfc4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryneptunerattrojan

    • Detects NeptuneRAT stealer

    • Family: NeptuneRAT, MasonRAT

      NeptuneRAT aka MasonRAT is a trojan written in C#.

      trojanneptunerat

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

      discovery
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks