EVM Reverse Engineering Challenge 0x03

Here I am, this time with the fourth challenge. This one it’s a bit more interesting. Let me know if you found it interesting as well. As always here is the address of the smart contract. Feel free to get that USDT!!

0x48f1F0095a91Ed8d3b788AB4c8998640cb5d4463

Hint: Can I call myself?