NL10 SH - 84s becomes a full house

Hand converted with online PokerStrategy.com hand converter:

Play hand

$0.05/$0.1 No-Limit Hold'em (5 handed)

Known players:
[tg]BU$4.12:///////;SB (Hero)$11.80:///////;BB$17.14:///////;MP3$11.13:///////;CO$4.57:///////;[/tg]

Preflop: Hero is SB with 8:h, 4:h.
MP3 folds, CO calls $0.10, BU folds, Hero calls $0.05, BB checks.

Flop: ($0.3) 7:c, 5:h, 4:c (3 players)
Hero checks, BB checks, CO bets $0.30, Hero calls $0.30, BB folds.

Turn: ($0.9) 8:s (2 players)
Hero checks, CO bets $0.30, Hero calls $0.30.

River: ($1.5) 8:d (2 players)
Hero bets $1.00, CO folds, Hero gets uncalled bet back.

Final Pot: $1.5.

Is leading on the river the correct move here? Or is CR better?

Villain: 42/11/1.12/31/36 [VPIP/PFR/AF/WTS/# HANDS]