SB is bad/passive but not a mega calling station type

$2.5/$5 No Limit Holdem
6 players
Converted at weaktight.com

Stacks:
UTG ($84.54)
UTG+1 ($839.79)
CO ($453.64)
BTN ($302.55)
SB ($500.30)
Hero ($500.00)

Pre-flop: ($7.50, 6 players) Hero is BB with 100% of his range
4 folds, SB calls $2.50, Hero raises to $22,

insta-profit?