Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/08/2026, 03:11

General

  • Target
    MasonClienterwr.exe
  • Size 49KB
  • Sample260827-dpklcadj7x
  • SHA256 94643ae6d9abe35d5bb8db91657af06815106e5906f18539207f69411e9e549a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Extracted

Family
  • neptunerat

C2
  • qvmropyafw.localto.net:1376

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    CwRtHjpbxoRPIL2M

  • rat_name

    MasonRAT

Signatures

  • Family: NeptuneRAT, MasonRAT

    NeptuneRAT aka MasonRAT is a trojan written in C#.

  • Detects NeptuneRAT stealer 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MasonClienterwr.exe
    "C:\Users\Admin\AppData\Local\Temp\MasonClienterwr.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4372

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/4372-0-0x00007FFBAD01F000-0x00007FFBAD020000-memory.dmp

        memory/4372-1-0x0000000000640000-0x0000000000652000-memory.dmp

        memory/4372-2-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-3-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-4-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-5-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-6-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-7-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-8-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-9-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-10-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-11-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-12-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-13-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-14-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-15-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-16-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp

        memory/4372-17-0x00007FFBACE90000-0x00007FFBAD834000-memory.dmp