Nothing wrong with the zip. It's either chrome (if you use that) or your AV being stupid for no good reason. No idea why it took 5 mins to download, it's only like 3mb or so.I downloaded it, there is an issue with the zip package. It errors while extract. Also took 5 mins or so to download....
There's nothing malicious about it, but make sure to "unblock" it after it's done downloading (unless you use a download manager then you shouldn't have to). Right click > properties > unblock > apply > ok.
And if that doesn't help... use 7zip...