First of all, this issue is NOT theme related!
If you encounter with this type of spam within your links

YOUR_DOMAIN.COM/index.php?get-your-social-buttons.info?ref=123456

in your google analytics summary stuff, please follow these links

https://moz.com/blog/stop-ghost-spam-in-google-analytics-with-one-filter

https://www.optimizesmart.com/what-i-learned-from-trying-to-fix-the-ghost-referrer-spam-in-google-analytics/

More info

https://www.google.cz/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=analytics%20ghost%20spam