31/3 over 150+ hands

Pretty sure this is a standard fold, but what is his range on the river?

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

saw flop

Button ($22.80)
SB ($14.75)
Hero (BB) ($25)
UTG ($10.05)
UTG+1 ($33.35)
MP1 ($15.45)
MP2 ($12.30)
MP3 ($25.25)
CO ($16.10)

Preflop: Hero is BB with 7, 7
1 fold, UTG+1 calls $0.25, 1 fold, MP2 calls $0.25, 3 folds, SB calls $0.15, Hero checks

Flop: ($1) 7, 10, 4 (4 players)
SB checks, Hero bets $1, UTG+1 calls $1, MP2 calls $1, 1 fold

Turn: ($4) 8 (3 players)
Hero bets $4, UTG+1 calls $4, 1 fold

River: ($12) J (2 players)
Hero checks, UTG+1 bets $20, Hero folds

Total pot: $12 | Rake: $0.55