Overview

overview

10

Static

static

10

22222222.exe

windows10-2004-x64

22222222.exe

windows11-ltsc_2024-x64

Sharing

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General

  • Target
    22222222.exe
  • Size 397KB
  • Sample261010-grflys1x7j
  • SHA256 bcede32304c228c2fed36e317e3ea239e7051cc3bd550c2a2052ae47d53d3270
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
neptuneratbootkitdefense_evasiondiscoveryexecutionpersistencetrojan

Malware Config

Targets

    • Target
      22222222.exe
    • Size 397KB
    • SHA256 bcede32304c228c2fed36e317e3ea239e7051cc3bd550c2a2052ae47d53d3270
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    bootkitdefense_evasiondiscoveryexecutionneptuneratpersistencetrojan

    • Detects NeptuneRAT stealer

    • Family: NeptuneRAT, MasonRAT

      NeptuneRAT aka MasonRAT is a trojan written in C#.

      trojanneptunerat

    • Disables Task Manager via registry modification

      defense_evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Contacts third-party web service commonly abused for C2

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks