FYI:
This is a
common mistake people make when using virustotal.
the two first links you posted are not scanning any files (.zip, ...) they are instead scanning the
URL you can see it from the link itself which is marked by ../url/... and reporting if the website has any malware on if when you visit.
the last link however is scanning the file because you have uploaded it. the link has ../file/... in it.
i could not find a way to not download then upload so far so if anyone has any solution i would be glad to know it. but with virustotal if you want to scan a file you have to upload it just putting the link and scanning will not scan the file.