I've some small papers/photos that I want to stand up a little bit from the background. I want to let it look like the corners of the paper/photo are lifted a little bit up ... not folded around, I don't want to the back face ... but a little bit more up in the air then the rest of the paper (rectangle).

Is this somehow possible in Illustrator? I saw some tutorials, that managed it in Photoshop by manually drawing the shadows and thus creating the illusion of my wanted effect ... but I'm looking for something 'vetorlike' in Illustrator.