Received 15 dollar of ETH yesterday?

Hello, I found something odd happened yesterday. For some unknown reason I received 15 dollars of ETH from an unknown address to my mining wallet. I do not understand why or where it came from. I thought maybe the payout conditions for my mining pool had changed, but it is not the same address that the pool has used for all other transactions to my wallet.

I'm kind of worried it is an attempt to fraud my wallet somehow, but I do not know how. Has this happened to anyone else on here? It's in the back of my mind constantly wondering if my wallet is gonna be a target or something to get what I've mined so far?

I've debated on making a new wallet and transferring my ETH to it just so the address is different. Would that make sense to do?