AA versus new player to the table

Villains first hand at the table, no stats.

PokerStars, Hold'em No Limit - $0.01/$0.02 - 8 players
Hand delivered by Upswing Poker

UTG: $1.38 (69 bb)
UTG+1 (Hero): $7.24 (362 bb)
MP: $1.00 (50 bb)
MP+1: $1.01 (51 bb)
CO: $3.19 (160 bb)
BU: $2.21 (111 bb)
SB: $3.37 (169 bb)
BB: $2.00 (100 bb)

Pre-Flop: ($0.03) Hero is UTG+1 with A♠ A♦
1 fold, Hero raises to $0.07, 1 fold, MP+1 calls $0.07, 1 fold, BTN calls $0.07, 1 fold, BB calls $0.05

Flop: ($0.29) 7♦ 5♠ 4♦ (4 players)
BB bets $0.06, Hero raises to $0.14, 2 players fold, BB calls $0.08

Turn: ($0.57) Q♥ (2 players)
BB bets $0.26, Hero calls $0.26

River: ($1.09) 5♣ (2 players)
BB bets $0.52, Hero...?

I raised pre- got called, villain donks small into me and I make it a bit more because I think he can be doing this with any type of draw, combo draw, pair + draw type stuff I still think Im ahead most of the time on the flop

On the turn he bets out half pot and I find this interesting, still unsure because the board is so wet he can have alot of stuff here I decide to just call . On the river he bets half pot on a 5 which doesnt complete any of the draws. So I think he might have picked up a Q sometimes, a set, or a 5? what are your thoughts on the hand. Im getting 3:1 on a call am I good here 1/4 of the time, the reason I re-raised small was because I wanted to keep much of his weaker ranges in the pot still and fold if he showed aggression on an ugly card but on the turn when he donk bet again I got a bit confused on what he can have here I felt like many players would play theyre nutted combo draws this way .

We do get one read very quickly. This guy is a fish. We find this out on the flop when he donks 6c oop into a raised pot.

Raise flop more. You're betting 14c into a 36c pot on a draw heavy board, it's far too small. Something like 28c is what I'd be raising to.
Turn is fine, call river. He can certainly have us beat here, but he can also do this with Qxdd, and other pairs he's overplaying. I am definitely not folding, while raising would be overplaying our hand. Flop raise is fine other than sizing, but after he donks turn we're right to just pick off his bets.

I agree with all ong said.
Except I'd point out that he not only donk bet OTF with a tiny blocker bet, he did it in a 4-handed pot. Risky at best to try to donk bet a blocker against 3 opponents.

Your flop bet put Villain in a position to call 8 into a pot of 49 (which would have been a lot more if either of the other villains had called). Excellent odds for just about any drawing hand, and you have AA, so he is almost certainly the one on a draw.