Technical Information
To ensure autorun and distribution
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\nxhvvuwbp.bwg] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\nxhvvuwbp.bwg] 'ImagePath' = '%WINDIR%\SysWOW64\regsvr32.exe /s "%WINDIR%\SysWOW64\Kuafl\nxhvvuwbp.bwg"'
Creates the following services
- 'nxhvvuwbp.bwg' %WINDIR%\SysWOW64\regsvr32.exe /s "%WINDIR%\SysWOW64\Kuafl\nxhvvuwbp.bwg"
Malicious functions
Executes the following (exploit)
- '%WINDIR%\syswow64\regsvr32.exe' -s ..\efhj.dll
Modifies file system
Creates the following files
- %HOMEPATH%\efhj.dll
- <Current directory>\cadc0000
Moves the following files
- from %HOMEPATH%\efhj.dll to %WINDIR%\syswow64\kuafl\nxhvvuwbp.bwg
Substitutes the following files
- <PATH_SAMPLE>.xls
Network activity
Connects to
- 'dr#####lchestclinic.com':80
- '15#.#06.112.196':8080
- '20#.#26.98.206':8080
- '79.##2.212.216':8080
- '51.#1.7.5':8080
- '72.##.201.15':8080
- '19#.#18.30.83':443
- '17#.#12.193.249':8080
- '45.##8.135.203':7080
- '10#.#82.225.142':8080
- '82.##5.152.127':8080
- '21#.#58.226.206':443
- '16#.#72.253.162':8080
- '15#.#5.88.10':8080
- '50.##.40.196':8080
- '12#.#32.188.93':443
- '45.##6.232.124':443
- '20#.#14.109.124':443
- '10#.50.0.91':8080
- '10#.#3.46.182':443
- '16#.68.99.3':8080
- '18#.#.212.130':7080
- '5.#.116.246':8080
- '18#.#32.46.161':443
- '51.#1.76.89':8080
- '21#.#82.25.250':8080
- '11#.#93.124.41':7080
- '15#.8.59.82':8080
- '19#.#01.151.129':8080
- '58.##7.42.236':80
- '21#.#4.98.99':8080
- '21#.#20.236.62':8080
- '13#.#85.72.26':8080
- '19#.#9.251.50':443
- '15#.#9.222.101':443
- '19#.#42.150.244':8080
- '50.##6.54.215':443
- '18#.#4.20.25':443
- '21#.#37.17.99':8080
- '15#.#26.146.25':7080
- '10#.#5.201.2':443
- '13#.#00.24.231':80
- '16#.#9.115.35':8080
- '19#.#54.133.20':443
TCP
HTTP GET requests
- http://dr#####lchestclinic.com/wp-includes/SqqCZQ6y2uyFF/
Other
- '21#.#20.236.62':8080
- '18#.#32.46.161':443
- '51.#1.76.89':8080
- '11#.#93.124.41':7080
- '15#.8.59.82':8080
- '19#.#01.151.129':8080
- '58.##7.42.236':80
- '13#.#00.24.231':80
- '19#.#9.251.50':443
- '10#.#5.201.2':443
- '20#.#26.98.206':8080
- '79.##2.212.216':8080
- '50.##.40.196':8080
- '20#.#14.109.124':443
UDP
- DNS ASK dr#####lchestclinic.com
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\regsvr32.exe' -s ..\efhj.dll' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\regsvr32.exe' /s "%WINDIR%\SysWOW64\Kuafl\nxhvvuwbp.bwg"
