Melee◆ fist +7 (unarmed), Damage 1d6+3 bludgeoning plus Grab
Melee◆ jaws +7 (unarmed), Damage 1d8+3 piercing
Grab◆
Source: Pathfinder Monster Core
Running this fight? Add the zombie shambler to the initiative tracker: type its name and the AC, hit points and Perception for initiative fill in, and the book button shows this stat block mid-fight.