Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/08/2026, 15:32

General

  • Target
    zb.exe
  • Size 51KB
  • Sample260810-synrpasbpa
  • SHA256 15acbe172e91369f2269ff3da267e9823e3877f87bc56db3e4698972bfabaf92
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • neptunerat

C2
  • o48uh5jgzi.localto.net:8411

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    6X7u8AcP1PMtwSYA

  • 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.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\zb.exe
    "C:\Users\Admin\AppData\Local\Temp\zb.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2956

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2956-0-0x00007FFD36F6F000-0x00007FFD36F70000-memory.dmp

        memory/2956-2-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-1-0x0000000000020000-0x0000000000034000-memory.dmp

        memory/2956-3-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-4-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-5-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-6-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-7-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-8-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-9-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-10-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-11-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-12-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp

        memory/2956-13-0x00007FFD36DE0000-0x00007FFD37784000-memory.dmp