You get it from the Foxit website. The trick is to uncheck the "make Ask my homepage" and similar checkboxes when you run the installer. As long as you take a few seconds to read the options on each box during installation, rather than clicking "OK" without thinking, you should be fine.
(And while Ask and similar stuff is an irritation, it is not by any stretch "malware" - there is a huge difference. If you install it accidentally, you can just uninstall it.)