I think it's not an airdrop. What is airdrop?

Project doesn't have any information, people won't believe it. Good luck!
I understand, this probably needs a website and more.
But what you say is wrong, the source code is open and free to read, it is an airdrop.

You get 1,000 tokens for free every hour by calling it.
Have a look if you want
https://etherscan.io/address/0x6ac1df9de8602db25a6378b6a89175de62b402fa#code