Overview

overview

10

Static

static

10

Reaper Met...s).exe

windows10-2004-x64

10

Reaper Met...s).exe

windows11-ltsc_2024-x64

10

Resubmissions

07/08/2026, 11:56

260807-n33desdl3z

07/08/2026, 11:52

260807-n137yaxtg110

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General

  • Target
    Reaper MetaTool V2 (Removed Bugs).exe
  • Size 51KB
  • Sample260807-n137yaxtg1
  • SHA256 ef9969aa3fdd10023aa13fd22ac563bbd1c060cd845381927123673404fe3b7e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
neptuneratdiscoveryexecutionpersistencetrojan

Malware Config

Extracted

Family

  • neptunerat

C2

  • 31.6.50.206:2002

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    8aW7IW8OdBPw2q6g

  • rat_name

    MasonRAT

Targets

    • Target
      Reaper MetaTool V2 (Removed Bugs).exe
    • Size 51KB
    • SHA256 ef9969aa3fdd10023aa13fd22ac563bbd1c060cd845381927123673404fe3b7e
    • 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

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Contacts third-party web service commonly abused for C2

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks