fraud under the guise of Stellar has been around for a long time, I was also fooled before, without me knowing I was taken to a phishing site, so my login data was stolen, fortunately the balance left in the wallet is not too much, from there I learned to be more careful especially with airdrop sites.
You got lucky that you don't have a big amount of Stellar in your wallet other it's going to be a big lessons on you part. I'm just surprised though that this month alone there's a huge explosion of fake giveways entering the cryptospace.
We really need to be very careful so that we won't be a victim and added to the statistics of growing numbers. Good catch from the OP.