Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SysHelper' = '"%LOCALAPPDATA%\7ceaceb8-bc23-413d-b12f-afd8e662dbcf\539B.tmp.exe" --AutoStart'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\cagiiuii.lnk
- <SYSTEM32>\tasks\opera scheduled autoupdate 711520318
- <SYSTEM32>\tasks\time trigger task
Creates the following services
- [<HKLM>\System\CurrentControlSet\Services\klpjvrxd] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\klpjvrxd] 'ImagePath' = '%WINDIR%\SysWOW64\klpjvrxd\nluveapl.exe /d"%TEMP%\5A14.tmp.exe"'
- [<HKLM>\SYSTEM\CurrentControlSet\services\klpjvrxd] 'ImagePath' = '%WINDIR%\SysWOW64\klpjvrxd\nluveapl.exe'
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion with following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\SysWOW64\klpjvrxd' = '00000000'
Executes the following
- '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul
Injects code into
the following system processes:
- %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
- %APPDATA%\microsoft\windows\cagiiuii\udsgtwcu.exe
- %TEMP%\539b.tmp.exe
- %TEMP%\5a14.tmp.exe
- %TEMP%\nluveapl.exe
- %LOCALAPPDATA%\7ceaceb8-bc23-413d-b12f-afd8e662dbcf\539b.tmp.exe
- %WINDIR%\syswow64\config\systemprofile:.repos
- %LOCALAPPDATA%\bowsakkdestx.txt
Sets the 'hidden' attribute to the following files
- %APPDATA%\microsoft\windows\cagiiuii\udsgtwcu.exe
Deletes the following files
- %TEMP%\5a14.tmp.exe
- <SYSTEM32>\tasks\time trigger task
- %LOCALAPPDATA%\bowsakkdestx.txt
Moves the following files
- from %TEMP%\nluveapl.exe to %WINDIR%\syswow64\klpjvrxd\nluveapl.exe
Deletes itself.
Network activity
TCP
HTTP GET requests
- http://www.ms###csi.com/ncsi.txt
- http://37.##.127.236/2.php
- http://vi##1.ug/files/penelop/updatewin1.exe
- http://vi##1.ug//Asjdi435784ihjk65pen2/get.php?pi#############################################
- http://vi##1.ug/files/penelop/updatewin2.exe
- http://vi##1.ug/files/penelop/updatewin.exe
- http://vi##1.ug/files/penelop/3.exe
HTTP POST requests
- http://cl####leankkl.net/
UDP
- DNS ASK gh###8kjhb.net
- DNS ASK cl####leankkl.net
- DNS ASK ap#.2ip.ua
- DNS ASK mi##########m.mail.protection.outlook.com
- DNS ASK vi##1.ug
- DNS ASK 19#.###.211.95.in-addr.arpa
Miscellaneous
Creates and executes the following
- '%TEMP%\539b.tmp.exe'
- '%TEMP%\5a14.tmp.exe'
- '%WINDIR%\syswow64\klpjvrxd\nluveapl.exe' /d"%TEMP%\5A14.tmp.exe"
- '%TEMP%\539b.tmp.exe' --Admin IsNotAutoStart IsNotTask
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\klpjvrxd\' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\nluveapl.exe" %WINDIR%\SysWOW64\klpjvrxd\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create klpjvrxd binPath= "%WINDIR%\SysWOW64\klpjvrxd\nluveapl.exe /d\"%TEMP%\5A14.tmp.exe\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description klpjvrxd "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start klpjvrxd' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul' (with hidden window)
- '%WINDIR%\syswow64\icacls.exe' "%LOCALAPPDATA%\7ceaceb8-bc23-413d-b12f-afd8e662dbcf" /deny *S-1-1-0:(OI)(CI)(DE,DC)' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\klpjvrxd\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\nluveapl.exe" %WINDIR%\SysWOW64\klpjvrxd\
- '%WINDIR%\syswow64\sc.exe' create klpjvrxd binPath= "%WINDIR%\SysWOW64\klpjvrxd\nluveapl.exe /d\"%TEMP%\5A14.tmp.exe\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\sc.exe' description klpjvrxd "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start klpjvrxd
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\icacls.exe' "%LOCALAPPDATA%\7ceaceb8-bc23-413d-b12f-afd8e662dbcf" /deny *S-1-1-0:(OI)(CI)(DE,DC)
- '%WINDIR%\syswow64\svchost.exe' --algo=cn-heavy/tube -o mining.bittubeapp.com:13333 -u bs4msiPiHNGTd5uzvZ9AGM1tjQoTiEX9BXopJg5er3ebEQ8a8mcwkjP5jNwst8rmVSRuogLs18DAVQzV76oHkVBk27idvmtUp.60000 -p x -k
