Overview

overview

10

Static

static

3

.exe

windows10-2004-x64

Sharing

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General

  • Target
    .exe
  • Size 447KB
  • Sample261113-phlevabv6t
  • SHA256 d8c72ff4db95e13f02a216e2921c34c6fc8f1a9fc1e8120b4fd78a1fb7537032
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
donutloaderneptuneratdefense_evasiondiscoveryloadertrojan

Malware Config

Extracted

Family

  • neptunerat

C2

  • sadkajwdjlkaw-38271.portmap.host:38271

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    zMSp1VfmTTwf21s0

  • rat_name

    MasonRAT

Targets

    • Target
      .exe
    • Size 447KB
    • SHA256 d8c72ff4db95e13f02a216e2921c34c6fc8f1a9fc1e8120b4fd78a1fb7537032
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoverydonutloaderneptuneratloadertrojan

    • Detects DonutLoader

      loader

    • Detects NeptuneRAT stealer

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

      loaderdonutloader

    • 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

    • Contacts third-party web service commonly abused for C2

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

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks