Here's what one source says
http://www.army-technology.com/projects/shturm/
the missile proceeds on an overfly trajectory until it approaches the target, allowing the gunner to acquire and maintain tracking on the target in limited visibility conditions.
and this gives a diagram of the missles trajectory. It does not appear to be a true "top attack" missle .
http://www.army-technology.com/proje...m/shturm5.html
Don