Unless the SB is a complete spewtard I don’t think you can really call here profitably. We’ve got to call 2K to win 5.5K (have to be good 27%) with one player behind.

I don’t expect the CO to be very strong here often, unless he slow played 33, 66 or KK here which could be possible. 

The SB however sees you overcalling the flop and if he is capable it puts your range pretty face up most % of the time like 88-QQ. Same goes for the SB he could easily have 33 or 66 here given the dry flop and not getting any value if he would check-raise. Once he donks into two players on the river after knowing (if he is capable) that we have SD value and the CO probably has air and stabbed or nuts. I think his range here is beating us more often then not. 

I see him betting here with KTs+, KJo+, 45 and sets off course.
Also his bet sizing is closer to please call me/value with two players behind then.

The big question here would be how competent villain is and what his PF calling range would be.

Without reads I fold. if I’m a little suspicious because of some history or anything I might look him up here. 

I also don’t like to get value here on the river. I’m a big fan of getting very slim value but unless villains are non believers I think checking it down is a great result here.

It looks to me that he may have some sort of weak K. He wasnt sure where he was so he checked behind on turn but when you check to him on river he decideds he must value the K.  I dont really see a drawing hand that he missed and is trying to now bluff the pot. I think this is a fold. Your only beating complete biscuits.