An actual answer is an infrared surface to air missile (IR SAM) ambush on an aircraft flying at low to medium altitude. The footage supports that, the missile impacts by the engine exhaust on the rear aspect suggesting infrared guidance, the aircraft is intact afterwards (shown in this image, no wings or stabilisers flying off) which is consistent with the smaller warheads on these systems, and reportedly returned back to base.

The US led coalition had 28 aircraft damaged or destroyed by the IR SAMs during the Gulf War.. It's a well known threat. Iran's IR SAMs are more modern and advanced than what Saddam Hussein's Iraq had, as with all technology nowadays.