Technical Information
Malicious functions
Executes the following (exploit)
- '<SYSTEM32>\regsvr32.exe' /s calc
- '<SYSTEM32>\regsvr32.exe' C:\Hefaggad\Ukdfaovkga\Buuefafa.dll
- '<SYSTEM32>\regsvr32.exe' C:\Hefaggad\Ukdfaovkga\Buuefafb.dll
Modifies file system
Creates the following files
- %TEMP%\error028320_01.xml
- C:\hefaggad\ukdfaovkga\buuefafb.dll
- <Current directory>\fa151000
Substitutes the following files
- <PATH_SAMPLE>.xlsb
Network activity
Connects to
- 'na######priselimited.co.uk':80
- 'me#######ylocalmarketing.com':80
TCP
HTTP GET requests
- http://na######priselimited.co.uk/Keeu/0.html
- http://me#######ylocalmarketing.com/7z8b/0.html
Other
- '34.##7.121.53':443
UDP
- DNS ASK na######priselimited.co.uk
- DNS ASK me#######ylocalmarketing.com
Miscellaneous
Creates and executes the following
- '<SYSTEM32>\regsvr32.exe' /s calc' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' C:\Hefaggad\Ukdfaovkga\Buuefafa.dll' (with hidden window)
- '<SYSTEM32>\regsvr32.exe' C:\Hefaggad\Ukdfaovkga\Buuefafb.dll' (with hidden window)
