Overview

overview

10

Static

static

10

MasonClient.exe

windows10-2004-x64

10

MasonClient.exe

windows11-ltsc_2024-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/08/2026, 02:53

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General

  • Target
    MasonClient.exe
  • Size 49KB
  • Sample260827-dds4caygla
  • SHA256 0976d830dee3ea9505a1671895efeb27dbc85644d9aaee5f6604884c7030f6b6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
neptunerattrojan

Malware Config

Extracted

Family

  • neptunerat

C2

  • woaytvfc6n.localto.net:1971

Attributes
  • filename

    USB.exe

  • group

    MasonGroup

  • key

    fJbkNkXkqOA8juXW

  • rat_name

    MasonRAT

Signatures

  • Family: NeptuneRAT, MasonRAT

    NeptuneRAT aka MasonRAT is a trojan written in C#.

    trojanneptunerat
  • Detects NeptuneRAT stealer 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MasonClient.exe
    "C:\Users\Admin\AppData\Local\Temp\MasonClient.exe"
    1⤵
      PID:440

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/440-0-0x0000000000BD0000-0x0000000000BE2000-memory.dmp
          Download