tokens were withdrawn from my wallet right after I bought it, what’s the problem?

hi everyone, i just used PancakeSwap dex for the first time, i have metamask wallet, connected to ledger cold wallet, i tried swapping 20$ BNB before buying this many tokens, the token is about to be listed and the token contract is taken from binance exchange, okx so it must not be a scam, after approving the transaction to sell bnb buy token on ledger and after bnb was swapped to token the token was immediately transferred out of the wallet to the burn address and disappeared, this is my first time using it why is there malicious permission? Is the token smart contract the problem or where is the problem?