Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/09/2026, 23:35

General

  • Target
    derkweeb.exe
  • Size 48KB
  • Sample260925-3ld2tsyhpc
  • SHA256 708a5e3a32078e50a4810805cae53b3f9f0dfc71d4bda43ba7fed3ccc32ddd8c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • neptunerat

C2
  • 36.tcp.cpolar.top:14806

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    mU4KY4UuwfuwpgJh

  • 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.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\derkweeb.exe
    "C:\Users\Admin\AppData\Local\Temp\derkweeb.exe"
    1⤵
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of AdjustPrivilegeToken
    PID:3884

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/3884-0-0x00007FF82D8CF000-0x00007FF82D8D0000-memory.dmp

        memory/3884-1-0x00000000007D0000-0x00000000007E2000-memory.dmp

        memory/3884-2-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-3-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-4-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-5-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-6-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-7-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-8-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-9-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-10-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-11-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-12-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-13-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-14-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp

        memory/3884-15-0x00007FF82D740000-0x00007FF82E0E4000-memory.dmp