First off, it's not paypal but ebay.
I suspect the image selection is being made based on software on ebay's site that is not
identifying your Chrome browser and selecting a default picture so as to be able
to render the page. I think you are okay as they both originate from the secure web
site of ebay.
Out the LAN card, down the cable, through the router,
out the gateway, to the ISP...nothin' but net!