Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    117s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 03:04

General

  • Target
    1111 1.exe
  • Size 1.6MB
  • Sample261102-dk13jass6l
  • SHA256 1edbba3bb7724ae649efe3c7d4146584652e2622ef9807b1b2c9a1038121ec51
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • neptunerat

C2
  • 23.tcp.cpolar.top:12649

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    Uow2qF417wXxUyF8

  • rat_name

    MasonRAT

Signatures

  • Family: NeptuneRAT, MasonRAT

    NeptuneRAT aka MasonRAT is a trojan written in C#.

  • Detects NeptuneRAT stealer 1 IoCs
  • Looks up external IP address via web service 1 TTPs 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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\1111 1.exe
    "C:\Users\Admin\AppData\Local\Temp\1111 1.exe"
    1⤵
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of AdjustPrivilegeToken
    PID:5732

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/5732-0-0x00007FFEB9D0F000-0x00007FFEB9D10000-memory.dmp

        memory/5732-1-0x00000000001B0000-0x0000000000350000-memory.dmp

        memory/5732-2-0x00007FFEB9B80000-0x00007FFEBA524000-memory.dmp

        memory/5732-3-0x00007FFEB9B80000-0x00007FFEBA524000-memory.dmp

        memory/5732-4-0x00007FFEB9B80000-0x00007FFEBA524000-memory.dmp

        memory/5732-5-0x00007FFEB9B80000-0x00007FFEBA524000-memory.dmp

        memory/5732-6-0x00007FFEB9B80000-0x00007FFEBA524000-memory.dmp