Technical Information
To ensure autorun and distribution
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\lSQsnwAzfKVAeSX.dll] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\lSQsnwAzfKVAeSX.dll] 'ImagePath' = '<SYSTEM32>\regsvr32.exe "<SYSTEM32>\HcTohggcZ\lSQsnwAzfKVAeSX.dll"'
- [<HKLM>\System\CurrentControlSet\Services\WZbXjYkTsBtG.dll] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\WZbXjYkTsBtG.dll] 'ImagePath' = '<SYSTEM32>\regsvr32.exe "<SYSTEM32>\PsVmbxaczChXZy\WZbXjYkTsBtG.dll"'
Creates the following services
- 'lSQsnwAzfKVAeSX.dll' <SYSTEM32>\regsvr32.exe "<SYSTEM32>\HcTohggcZ\lSQsnwAzfKVAeSX.dll"
- 'WZbXjYkTsBtG.dll' <SYSTEM32>\regsvr32.exe "<SYSTEM32>\PsVmbxaczChXZy\WZbXjYkTsBtG.dll"
Malicious functions
Executes the following (exploit)
- '<SYSTEM32>\regsvr32.exe' /S ..\soci1.ocx
- '<SYSTEM32>\regsvr32.exe' /S ..\soci2.ocx
- '<SYSTEM32>\regsvr32.exe' /S ..\soci3.ocx
- '<SYSTEM32>\regsvr32.exe' /S ..\soci4.ocx
Modifies file system
Creates the following files
- %HOMEPATH%\soci3.ocx
- %HOMEPATH%\soci4.ocx
- <Current directory>\ab331000
Moves the following files
- from %HOMEPATH%\soci3.ocx to <SYSTEM32>\hctohggcz\lsqsnwazfkvaesx.dll
- from %HOMEPATH%\soci4.ocx to <SYSTEM32>\psvmbxaczchxzy\wzbxjyktsbtg.dll
Substitutes the following files
- <PATH_SAMPLE>.xls
Network activity
Connects to
- 'at###son.com':443
- '15#.#9.202.34':443
- '51.#1.76.89':8080
- '10#.#5.201.2':443
- '18#.#.135.165':8080
- '45.##8.115.99':8080
- '13#.#22.66.193':8080
- '21#.#4.98.99':8080
- '20#.#26.98.206':8080
- '20#.#89.28.199':8080
- '19#.#42.150.244':8080
- '18#.#11.227.137':8080
- '15#.#9.222.101':443
- '51.##1.73.194':443
- '15#.#06.112.196':8080
- '11#.#8.227.76':8080
- '13#.#00.24.231':80
- '10#.#70.39.149':8080
- '20#.#48.79.14':8080
- '19#.#18.30.83':443
- '14#.#6.131.28':8080
- '17#.#05.226.75':8080
- '21#.#39.212.5':443
- '10#.#68.155.143':8080
- '14#.#02.108.116':8080
- '16#.#0.222.65':443
- 'bi####regitim.net':80
- 'at##i.net':80
- 'x1.#.lencr.org':80
- 'bu####mazzi.com.br':443
- '18#.#4.20.25':443
- '45.#35.8.30':8080
TCP
HTTP GET requests
- http://x1.#.lencr.org/
- http://at##i.net/c/MgEC/
- http://www.bi####regitim.net/wp-includes/f/
Other
- 'at###son.com':443
- 'bu####mazzi.com.br':443
- '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
- '13#.#00.24.231':80
- '51.##1.73.194':443
- '15#.#9.222.101':443
- '20#.#26.98.206':8080
- '10#.#5.201.2':443
- '51.#1.76.89':8080
- '15#.#9.202.34':443
UDP
- DNS ASK at###son.com
- DNS ASK bu####mazzi.com.br
- DNS ASK x1.#.lencr.org
- DNS ASK at##i.net
- DNS ASK bi####regitim.net
Miscellaneous
Creates and executes the following
- '<SYSTEM32>\regsvr32.exe' /S ..\soci1.ocx' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' /S ..\soci2.ocx' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' /S ..\soci3.ocx' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' /S ..\soci4.ocx' (with hidden window)
Executes the following
- '<SYSTEM32>\regsvr32.exe' "<SYSTEM32>\HcTohggcZ\lSQsnwAzfKVAeSX.dll"
- '<SYSTEM32>\regsvr32.exe' "<SYSTEM32>\PsVmbxaczChXZy\WZbXjYkTsBtG.dll"
