Hello, Rui.
I think I solved it. At some point during the whole cleaning process, I noticed a lot of things were involving Chromium. I did some research and found out this is Google's open source browser. I don't understand much about this kind of thing but maybe because it's open source (I went with the "open" thing lol) it's easier for people to attack it. In my research I also found out you can remove Chromium without causing any damage to your computer or affecting Chrome. So that's what I did. Then I reinstalled Google Chrome, and that was it. Apparently, Coinhive is gone.
If you need me to send any other logs so you can check that, let me know.
Once again, thank you for your support! =)