It's a cruise missile, not a ICBM.
ICBMs go WAY up in the air, exit the atmosphere, and then come back down - hence the "ballistic" part of their name.
Cruise missiles are like unmanned kamikaze airplanes. They fly to their target in the atmosphere either at high altitude or at low level.
Well, if we got technical we could just name these suckers ICCM InterContinental Cruise Missiles.