Low sun angle.
Note how quickly the double bright spot is highlighted as soon as the sun rises. You'd expect this from the one located on the central peak of that crater, it pokes up above the crater rim and catches the first rays of the rising sun. Bur the smaller spot, near the crater's eastern edge, quickly glows even though it lies in the shadow of the crater's wall. It must be on high ground inside the crater, perhaps on rubble brought into the depression by an avalanche.