|Go into the file's properties and check the General tab. Is the type of file a shortcut? It sounded like what you downloaded was a shortcut to the file, not the file itself. Of course, since the real file isn't on your computer or network, the shortcut is useless.|
Adobe has a heck of a time keeping their products - including Adobe Reader - free from malware intrusions. I suggest you uninstall Adube Reader and instead get the free Foxit Reader.
Apologies if I don't respond to your reply immediately. I don't check this site daily, but you're welcome to PM me as a reminder.