Welcome to the forum Steven. Hopefully Igofar will be able to walk you through things. He's more than capable!
My initial guess is something is loose and just needs to be tightened, but as you noted you're new to bikes so if you are not comfortable or capable then have someone who is check it as well. It may also need a fluid top up or having the brakes bled afterwards too. Don't drive it if it's leaking as that could be catastrophic.
Let us know how you made out with Igofar so we can help you from there if needed.