Overview

overview

10

Static

static

10

xx.exe

windows10-2004-x64

10

xx.exe

windows10-ltsc_2021-x64

10

xx.exe

windows11-21h2-x64

10

xx.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    xx.exe
  • Size 49KB
  • Sample260804-rqblqayzhy
  • SHA256 73e8a375167f4656a0a814c1cbaed2cfaf02cc9f9667972c1b94308cc46c2c5e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
neptuneratexecutiontrojan

Malware Config

Extracted

Family

  • neptunerat

C2

  • viperalza7fgg-40476.portmap.host:40476

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    DcZUTLnUquKxzICQ

  • rat_name

    MasonRAT

Targets

    • Target
      xx.exe
    • Size 49KB
    • SHA256 73e8a375167f4656a0a814c1cbaed2cfaf02cc9f9667972c1b94308cc46c2c5e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    executionneptunerattrojan

    • 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

    • Checks computer location settings

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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Enterprise v16

Tasks