Not sure if it's a redirect, but something tried to send your credit card information somewhere. Is the download in question something you paid for with credit card? If not, I'd be on the look-out for an infection on your computer. Nothing
should be sending out your credit card information without you doing it yourself. If you did pay for it with credit card, sometimes companies use other websites to handle their financial transactions, but given the fact that the code looks like code for a picture...
Here is something I just found about falkag what is falkag
. Basically it's a marketing advertising company that apparently is not too picky about its advertising customers. I have not investigated falkag.net's own page as I fear getting infected.
As a precaution, I'd clear out all my cookies as falkag does plant some tracking cookies. Don't know about other stuff.