SPAM with no return address.

I am getting lots of SPAM email I want to filter, but there is no return address from which to create a filter. Without the return address, the filter Dialog box does not open. When I hover over a link in the body, it reads: ppt.cc/****** (*=wildcard) at the bottom of the screen. I Googled the ppt.cc and found it is a Chinese site. How can I create a filter like: Response Address / Contains / ppt.cc / move to Trash? I purchased a car recently and a few days later found a clause in the paperwork that released them to sell my email address. I've been creating dozens of filters lately using Contains (domains).