Almost looks like something blasted out from under the surface than fell from the Martian sky like a meteorite.............Just speculating.
I’m guessing its a collapsed lava tube under loose sand.
I’m inclined to wonder if there was a mass of ice which got buried, then melted out, and the void created what is basically a sinkhole. This is referred to as a lava tube, but I’ll stick with my idea, since Mars shows only the (alleged) traces of very ancient past volcanism, and this appears “fresh”.