Overview

overview

10

Static

static

3

Output.exe

windows10-2004-x64

10

Output.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Output.exe
  • Size 1.5MB
  • Sample261001-ndfs5assdv
  • SHA256 06782e08ae567b3eecc1584d63d9b35f17963bee25c52f9030bf1a754fff9417
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
neptuneratdiscoverytrojan

Malware Config

Extracted

Family

  • neptunerat

C2

  • efk-43863.portmap.host:43863

Attributes
  • filename

    Epic Games Launcher.exe

  • group

    MasonGroup

  • key

    Ni71esu44sAj1tWl

  • rat_name

    MasonRAT

Targets

    • Target
      Output.exe
    • Size 1.5MB
    • SHA256 06782e08ae567b3eecc1584d63d9b35f17963bee25c52f9030bf1a754fff9417
    • 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

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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