This is most likely a modified and upgraded SA-2 from Iran. This is real test of whether Israeli aircrafts can attacked at high altitude as in the 2nd Lebanon War, since SA-2s perform best at high altitude targets. And also this may give an insight how well Israel will perform in a plan attack on Iran's nuclear facilities.
Alleged Jerusalem gay pride parade stabber brought before judge for remand hearing (Haaretz)
from the article: U.S. official: Arming of Hezbollah could spark Israel-Syria war