Oh, it is a well-known Bitcoin doubler script. I've seen her many times already.
You forgot to check domain, which is just 2 days old
https://whois.domaintools.com/unigiveaway.orgDates 2 days old
Created on 2020-09-27
Expires on 2021-09-27
Updated on 2020-09-27
Also, they use very similar design as on Medium.com, likely to confuse people by portraying a well-known and trusted website look. the good thing is that it's after two days marked as dangerous.