Opener David Warner smashed a quickfire 75 and Chris Rogers was on 31 to take Australia to 113 without loss at close of play on the second day, trailing by 341 runs with all ten wickets standing.
Warner hit seven fours and a six in his eighth Test half-century, his sixth in succession, as Australia matched Pakistan's batting.
Pakistan could have removed Rogers on 13 in left-arm spinner Zulfiqar Babar's first over but Younis Khan failed to hold a straightforward catch in the slips. Warner reverse-swept debutant leg-spinner Yasir Shah for his fifth boundary to reach his run-a-ball 50.
He completed his hundred off just 80 balls, hitting paceman Mitchell Marsh over the slips for the fourth fastest century by a Pakistani. Majid Khan holds the record for the fastest Test hundred by a Pakistani in terms of deliveries faced, on 74 balls, while Shahid Afridi hit hundreds off 78 balls on two occasions.