Ronaldo assisted the Korean goal. To be fair, I think he expected the Korean player or Portuguese defender to hit the ball and it kind of surprised him. His reaction where he is pulling his arm to his body and dodging could be just a reflex to avoid giving a handball or getting hit in the head.
I think there was also once a free kick where he was standing in the wall and moved away to not get hit by the ball, but him making that move led to a opponent's goal (or maybe it was really close to a goal).