Villain is unknown.

PokerStars - $0.05 NL (6 max) - Holdem - 5 players
Hand converted by PokerTracker 4

BB: $13.64
UTG: $4.76
Hero (CO): $6.11
BTN: $3.86
SB: $8.34

SB posts SB $0.02, BB posts BB $0.05

Pre Flop: (pot: $0.07) Hero has Q A

UTG calls $0.05, Hero raises to $0.20, fold, fold, fold, UTG calls $0.15

Flop: ($0.47, 2 players) 8 A 4
UTG bets $0.30, Hero calls $0.30

Turn: ($1.07, 2 players) 9
UTG checks, Hero bets $0.75, UTG raises to $2.00, Hero ???

Wasn't sure what to make of this? First thoughts were A8/A9 because of the limp call pre, but I guess he might l/c with 44/88/99 as well, either way I have to beat here right? Villain is unknown so I guess he could be bluffing or maybe c/r a big draw?

Fold and wait until we have more info on villain?