Yes, looks like the water leak is coming from the back of the water tank where it mounts to the back wall.

Its currently out-of-stock at RepairClinic but in-stock here:
Samsung DA97-02650D Water Tank Assy -

Its fairly easy to replace, but you'll need to pull your refrigerator out from the wall to get access to those back plastic water lines to connect to the new tank.

I'm moving your posts to a new thread here: RS277ACPN leaking water in lower refrigerator section