As I'm waiting for a new motherboard (it had bent pins) I noticed darkened spots on the 2 corners on the bottom of the CPU and I imagine that it's not normal yet I have no idea what could have caused it. As the only possible things it could have been is ArtiClean, MX-4 or fingers but I really don't think any of those have touched it.
Images should help clarify what I mean
Images should help clarify what I mean