Around here, rubs like that look like they're made on cedar.
As for a large buck? Hard to say, but I'm not seeing those
deep cuts you often see on some trees. They are from the
spurs and junk at the base of each antler often seen on the
larger/older deer. I usually look for those deep cuts when
looking at a single rub, that and the height.
I wouldn't mind hunting in that area to see what's around!
Good luck hunting and stay safe out there! Have fun too!!
iSnipe