Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/11/2026, 17:14

General

  • Target
    NeptuneRAT-Cracked.exe
  • Size 26.4MB
  • Sample261109-vr22vagh28
  • SHA256 301b188f613df413fd830d89617719907f3446ba9bc5f9d9a66b16ea64d0905d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: NeptuneRAT, MasonRAT

    NeptuneRAT aka MasonRAT is a trojan written in C#.

  • Detects NeptuneRAT stealer 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NeptuneRAT-Cracked.exe
    "C:\Users\Admin\AppData\Local\Temp\NeptuneRAT-Cracked.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\System.Data.exe
      "C:\Users\Admin\AppData\Local\Temp\System.Data.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5356
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5356 -s 948
        3⤵
        • Program crash
        PID:2160
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5356 -ip 5356
    1⤵
      PID:1652

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          System.Data.exe

          • Path C:\Users\Admin\AppData\Local\Temp\System.Data.exe
          • Size 29.5MB
          • SHA256 7145107da0809953dc99ec4c45997aaef05f8c697d67860c712ffb304dc430aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/5356-11-0x0000000074212000-0x0000000074213000-memory.dmp

          memory/5356-12-0x0000000000F50000-0x0000000002CCE000-memory.dmp

          memory/5356-13-0x0000000007ED0000-0x000000000848A000-memory.dmp

          memory/5356-14-0x00000000078A0000-0x0000000007932000-memory.dmp