Unless if you are faster than the bot make a transaction right away after you sent bnb to that wallet.
Or better wait for a few weeks and maybe the bot will stop sending them automatically.
Have you exposed your private key to someone or other websites?
There is nothing we can do if someone already has access to your private key and set a bot to automatically send funds to the hacker's address. What you can only do is wait for a few weeks or months until the hacker's bot is stop running.
I never heard someone has been infected with clipboard malware using a phone Android or IOS. So I guess someone already has access to his private key and uses a script to run and automatically send funds to another wallet.