My computer does a lot of queries to strange domains such as:
The strange thing is that 56cea5c2b408989ab067adcb787d0f99209bbe07 is the SHA1 of the string "Ebay.com"
Is it a malware? It seems to build hidden queries to well known web site.
---- EDIT ----
This is not the only SHA1 domain prefix that I found, another one exist for "Twitter.com".
Another factor I have to add to the discussion is that when you find an HEX string of length of 16, or 20 is very likely it is an hash. The first thing you can do is a search on Google. There are many web sites that collect hashes (MD5 or SHA1) strings. Try to put the HEX string in google and see :)