Hiding Objects Behind Your Hand Vuforia

Hi! I was working on a 3D puzzle game where I want to add some realism to my rendering. The question is if I move my hand onto the objects which are standing on my Image Target, I want them to be partially rendered or hidden if my hand is completely covering them. I got the idea of depth masking and Depth Mask Shader. However, how will implement this behavior with my hand? Imagine that this cube is a hand and as it is shown the objects on behind are partially rendered.