Technical Information
To ensure autorun and distribution
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\QKbh.dll] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\QKbh.dll] 'ImagePath' = '<SYSTEM32>\regsvr32.exe "<SYSTEM32>\QnbGjAHhRGvBqZba\QKbh.dll"'
- [<HKLM>\System\CurrentControlSet\Services\xhkiuEyUcqahT.dll] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\xhkiuEyUcqahT.dll] 'ImagePath' = '<SYSTEM32>\regsvr32.exe "<SYSTEM32>\QTfAZTHjKP\xhkiuEyUcqahT.dll"'
Creates the following services
- 'QKbh.dll' <SYSTEM32>\regsvr32.exe "<SYSTEM32>\QnbGjAHhRGvBqZba\QKbh.dll"
- 'xhkiuEyUcqahT.dll' <SYSTEM32>\regsvr32.exe "<SYSTEM32>\QTfAZTHjKP\xhkiuEyUcqahT.dll"
Malicious functions
Executes the following (exploit)
- '<SYSTEM32>\regsvr32.exe' /S ..\hhdt1.ocx
- '<SYSTEM32>\regsvr32.exe' /S ..\hhdt2.ocx
- '<SYSTEM32>\regsvr32.exe' /S ..\hhdt3.ocx
- '<SYSTEM32>\regsvr32.exe' /S ..\hhdt4.ocx
Modifies file system
Creates the following files
- %HOMEPATH%\hhdt3.ocx
- %HOMEPATH%\hhdt4.ocx
- <Current directory>\47061000
Moves the following files
- from %HOMEPATH%\hhdt3.ocx to <SYSTEM32>\qnbgjahhrgvbqzba\qkbh.dll
- from %HOMEPATH%\hhdt4.ocx to <SYSTEM32>\qtfazthjkp\xhkiueyucqaht.dll
Substitutes the following files
- <PATH_SAMPLE>.xls
Network activity
Connects to
- 'wp.##yaz.net':80
- 'ya###urf.com':443
- 'x1.#.lencr.org':80
- 'r3.#.lencr.org':80
- 'za####ora.com.mx':80
- 'zh##ir.com':80
- 'oc##.thawte.com':80
- '16#.#0.222.65':443
- '14#.#02.108.116':8080
- '10#.#68.155.143':8080
- '21#.#39.212.5':443
- '17#.#05.226.75':8080
- '14#.#6.131.28':8080
TCP
HTTP GET requests
- http://wp.##yaz.net/bayar1/gQ3C8aNR9773v0sWR/
- http://x1.#.lencr.org/
- http://r3.#.lencr.org/MFMwUTBPME0wSzAJBgUrDgMCGgUABBRI2smg%2ByvTLU%2Fw3mjS9We3NfmzxAQUFC6zF7dYVsuuUAlA5h%2BvnYsUwsYCEgRrHZ2iGUPNSvKFdcYOkVkJqA%3D%3D
- http://za####ora.com.mx/cgi-bin/bg7Q06nqt3DJRvH0/
- http://zh##ir.com/wp/g1bvvKyM/
- http://oc##.thawte.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQwF4prw9S7mCbCEHD%2Fyl6nWPkczAQUe1tFz6%2FOy3r9MZIaarbzRutXSFACEEeXTXhzpbyrDS%2BzcBkvzl4%3D
Other
- 'ya###urf.com':443
- '21#.#39.212.5':443
- '17#.#05.226.75':8080
UDP
- DNS ASK wp.##yaz.net
- DNS ASK ya###urf.com
- DNS ASK x1.#.lencr.org
- DNS ASK r3.#.lencr.org
- DNS ASK za####ora.com.mx
- DNS ASK zh##ir.com
- DNS ASK oc##.thawte.com
Miscellaneous
Creates and executes the following
- '<SYSTEM32>\regsvr32.exe' /S ..\hhdt1.ocx' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' /S ..\hhdt2.ocx' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' /S ..\hhdt3.ocx' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' /S ..\hhdt4.ocx' (with hidden window)
Executes the following
- '<SYSTEM32>\regsvr32.exe' "<SYSTEM32>\QnbGjAHhRGvBqZba\QKbh.dll"
- '<SYSTEM32>\regsvr32.exe' "<SYSTEM32>\QTfAZTHjKP\xhkiuEyUcqahT.dll"
