Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'background' = '%TEMP%\background.exe'
Malicious functions:
Creates and executes the following:
- '%TEMP%\File40.exe'
- '%TEMP%\File84.exe'
- '%TEMP%\File90.exe'
- '%TEMP%\File36.exe'
- '%TEMP%\File40.exe' (downloaded from the Internet)
- '%TEMP%\File84.exe' (downloaded from the Internet)
- '%TEMP%\File36.exe' (downloaded from the Internet)
- '%TEMP%\File90.exe' (downloaded from the Internet)
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\csc.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "background" /t REG_SZ /d "%TEMP%\background.exe
Injects code into
the following system processes:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\csc.exe
Searches for registry branches where third party applications store passwords:
- [<HKCU>\Software\IMVU\username]
Modifies file system:
Creates the following files:
- %TEMP%\Cab15.tmp
- %TEMP%\background.exe
- %TEMP%\Cab13.tmp
- %TEMP%\CabF.tmp
- %TEMP%\Cab11.tmp
- %TEMP%\File84.exe
- %TEMP%\File40.exe
- %TEMP%\File90.exe
- %ALLUSERSPROFILE%\Application Data\CRNJEUFU_3_19_7_47_1.jpg
- %TEMP%\File36.exe
- %TEMP%\CabD.tmp
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
- %TEMP%\Cab1.tmp
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
- %APPDATA%\Microsoft\CryptnetUrlCache\MetaData\2BF68F4714092295550497DD56F57004
- %APPDATA%\Microsoft\CryptnetUrlCache\Content\2BF68F4714092295550497DD56F57004
- %TEMP%\Cab9.tmp
- %TEMP%\CabB.tmp
- %TEMP%\Cab7.tmp
- %TEMP%\Cab3.tmp
- %TEMP%\Cab5.tmp
Deletes the following files:
- %TEMP%\CabF.tmp
- %TEMP%\CabD.tmp
- %TEMP%\Cab11.tmp
- %TEMP%\Cab15.tmp
- %TEMP%\Cab13.tmp
- %TEMP%\CabB.tmp
- %TEMP%\Cab3.tmp
- %TEMP%\Cab1.tmp
- %TEMP%\Cab5.tmp
- %TEMP%\Cab9.tmp
- %TEMP%\Cab7.tmp
Network activity:
Connects to:
- 'de###at.wp.lc':80
- 'ev#####enrealworks.com':80
- 'tl.##mcb.com':80
- 'wp#d':80
- 'www.download.windowsupdate.com':80
TCP:
HTTP GET requests:
- http://de###at.wp.lc/EXE/oly.exe
- http://de###at.wp.lc/EXE/lumino.exe
- http://ev#####enrealworks.com/allworks/scala/kbpanel/post.php?ty###################################################################################################
- http://de###at.wp.lc/EXE/oz.exe
- http://de###at.wp.lc/EXE/im.exe
- http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt
- http://11#.#11.111.1/wpad.dat via wp#d
- http://tl.##mcb.com/tl.crt
- http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
HTTP POST requests:
- http://ev#####enrealworks.com/allworks/scala/kbpanel/image/upload.php
UDP:
- DNS ASK de###at.wp.lc
- DNS ASK ev#####enrealworks.com
- DNS ASK tl.##mcb.com
- DNS ASK wp#d
- DNS ASK www.download.windowsupdate.com
