Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\zyntqtkb5400
Malicious functions
Launches a large number of processes
Modifies file system
Creates the following files
- <Current directory>\jo7nyjr.xml
Deletes following files that it created itself
- <Current directory>\jo7nyjr.xml
Substitutes the following executable files
- <Full path to file>
Moves itself
- from <Full path to file> to <Current directory>\old_<File name>.exe
Deletes itself.
Network activity
Connects to
- 'pa###bin.com':443
- 'cu##t.org':443
- '19#.#32.210.172':80
- 'x1.#.lencr.org':80
- 'q.#s':80
- 'pu######r.linkvertise.com':443
- 'r1#.#.lencr.org':80
TCP
HTTP GET requests
- http://q.#s/EVnYC
- http://r1#.#.lencr.org/2.crl
Other
- '15#.#01.1.91':443
- 'cu##t.org':443
- 'pu######r.linkvertise.com':443
UDP
- DNS ASK pa###bin.com
- DNS ASK cu##t.org
- DNS ASK x1.#.lencr.org
- DNS ASK q.#s
- DNS ASK pu######r.linkvertise.com
- DNS ASK r1#.#.lencr.org
Miscellaneous
Restarts the analyzed sample
Executes the following
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /RL HIGHEST /SC ONLOGON /TR "<Full path to file>" /TN zYNTQtkB5400 /F
- '%WINDIR%\syswow64\cmd.exe' /c schtasks.exe /Query /XML /TN zYNTQtkB5400 > <Current directory>\jO7nYJr.xml
- '%WINDIR%\syswow64\schtasks.exe' /Query /XML /TN zYNTQtkB5400
