Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\software\Wow6432Node\microsoft\windows\currentversion\run] 'wuaucldt' = '<SYSTEM32>\wuaucldt.exe'
- [<HKCU>\software\microsoft\windows\currentversion\run] 'wuaucldt' = '%HOMEPATH%\wuaucldt.exe'
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
- %WINDIR%\syswow64\wuaucldt.exe
- %HOMEPATH%\wuaucldt.exe
Deletes the following files
- %WINDIR%\syswow64\wuaucldt.exe
Deletes itself.
Network activity
Connects to
- '70.##.100.242':443
- '20#.#10.80.35':443
- '20#.#14.40.79':443
- 'mi#####ibiotec.co.jp':443
- '20#.#10.80.34':443
- 'aa##d.jp':443
- '<LOCALNET>.34.54':443
- '82.##3.122.190':443
- 'di####.ips.co.jp':443
- '21#.#57.5.25':443
- 'im#####olheados.com.br':443
- '14#.#77.205.56':443
- '21#.#47.30.22':443
- 'di###er.com.br':443
- '20#.#0.45.207':443
- 'ss#.#ukro.ua':443
- '20#.#18.170.179':443
- '21#.#33.134.87':443
- '20#.#10.80.36':443
- '16#.#09.180.1':443
- '21#.#2.72.183':443
- '20#.#18.111.122':443
- 'im###ca.com.br':443
- '20#.#6.50.168':443
- '62.##9.23.110':443
- '74.#22.4.12':443
- '21#.#71.131.16':443
- 'm-####.lib.meiji.ac.jp':443
- 'tr######islandcasino.com.ua':443
- 'ka###a.co.jp':443
- '77.##0.104.50':443
- '20#.#92.143.87':443
- 'ir.####shima-u.ac.jp':443
- 'ml#.co.jp':443
- '12#.#3.25.30':443
- '79.##1.122.236':443
- 'wo#.##rlin.org.ua':443
- 'ac#####s.comodo.od.ua':443
- '13#.#9.92.68':443
- '70.##.100.244':443
- 'ss#.##rm-mailer.jp':443
- 'sa#####garias.com.br':443
- 'fo##.cao.go.jp':443
- 'ss#.#oressl.jp':443
- 'g1##.#ecure.ne.jp':443
- 'it#####.smartseminar.jp':443
- 'ma####key.com.ua':443
- '77.##0.121.35':443
- '11#.#25.150.227':443
- '64.##1.68.169':443
- '21#.#9.163.41':443
- '20#.#80.136.89':443
- '19#.#5.154.4':443
- '21#.#11.198.59':443
- '20#.#34.192.141':443
- '20#.#91.113.9':443
- '91.##3.146.30':443
- '19#.#82.192.2':443
- 'bu###r.org.ua':443
- '21#.#25.95.245':443
- '20#.#9.212.100':443
- 'we###er.co.ua':443
- 'lo##.#ray.com.br':443
- '91.##6.95.24':443
- '20#.#6.41.87':443
- '10#.#2.122.165':443
- '64.##.197.143':443
- 'ji##.go.jp':443
- 'bi#####records.com.br':443
- '69.##.149.166':443
- 'ma##ntz.jp':443
- '70.##.100.243':443
- '69.##.128.35':443
- '20#.#4.220.4':443
- '21#.#65.4.71':443
- '21#.#86.115.36':443
- 'sc####e-forum.co.jp':443
TCP
Other
- 'ma####key.com.ua':443
- 'im###ca.com.br':443
- '21#.#71.131.16':443
- 'tr######islandcasino.com.ua':443
- 'm-####.lib.meiji.ac.jp':443
- 'ka###a.co.jp':443
- 'ir.####shima-u.ac.jp':443
- 'aa##d.jp':443
- 'di####.ips.co.jp':443
- 'im#####olheados.com.br':443
- 'di###er.com.br':443
- 'ss#.#ukro.ua':443
- 'lo##.#ray.com.br':443
- 'we###er.co.ua':443
- 'ji##.go.jp':443
- 'bi#####records.com.br':443
- 'ma##ntz.jp':443
- 'bu###r.org.ua':443
- '19#.#82.192.2':443
- 'ss#.##rm-mailer.jp':443
- 'fo##.cao.go.jp':443
- 'g1##.#ecure.ne.jp':443
- 'ss#.#oressl.jp':443
- 'sa#####garias.com.br':443
- '21#.#9.163.41':443
- 'it#####.smartseminar.jp':443
- 'wo#.##rlin.org.ua':443
- 'sc####e-forum.co.jp':443
UDP
- DNS ASK g1##.#ecure.ne.jp
- DNS ASK aa##d.jp
- DNS ASK mi#####ibiotec.co.jp
- DNS ASK ex#.#roadser
- DNS ASK se###y.com.br
- DNS ASK ep#a
- DNS ASK ne###etter.go
- DNS ASK is##.tup.km.ua
- DNS ASK di####.ips.co.jp
- DNS ASK ru###.org.ua
- DNS ASK sh##.poziti
- DNS ASK se##re.fox
- DNS ASK ka###a.co.jp
- DNS ASK m-####.lib.meiji.ac.jp
- DNS ASK tr######islandcasino.com.ua
- DNS ASK im###ca.com.br
- DNS ASK ir#
- DNS ASK wo#.##rlin.org.ua
- DNS ASK ml#.co.jp
- DNS ASK ir.####shima-u.ac.jp
- DNS ASK im#####olheados.com.br
- DNS ASK fo###.gryada.org.ua
- DNS ASK ap###.#eedexpo.co.jp
- DNS ASK fo##.cao.go.jp
- DNS ASK ss#.##rm-mailer.jp
- DNS ASK ma####key.com.ua
- DNS ASK it#####.smartseminar.jp
- DNS ASK sa#####garias.com.br
- DNS ASK in#e
- DNS ASK bu###r.org.ua
- DNS ASK ma##ntz.jp
- DNS ASK ss#.#oressl.jp
- DNS ASK bi#####records.com.br
- DNS ASK ji##.go.jp
- DNS ASK lo##.#ray.com.br
- DNS ASK we###er.co.ua
- DNS ASK ri##ex.jp
- DNS ASK ac#####s.comodo.od.ua
- DNS ASK sp####.cartoons.org.ua
- DNS ASK ss#.#ukro.ua
- DNS ASK di###er.com.br
- DNS ASK nr#.co.jp
- DNS ASK st##e.co.ua
- DNS ASK sc####e-forum.co.jp
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\wuaucldt.exe'
- '%HOMEPATH%\wuaucldt.exe'
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /c del <Full path to file>
- '%WINDIR%\syswow64\cmd.exe' /c del %WINDIR%\syswow64\wuaucldt.exe
- '%WINDIR%\syswow64\svchost.exe'
