Australian bowlers unleashed tight line and length to fold Pakistan's innings at 207 in 46.2 overs in the second day-night international in Dubai at the Dubai Stadium on Friday.
Off-spinner Nathan Hauritz took 3-41, while pacemen James Hopes and Andrew Symonds chipped in with two wickets apiece as Pakistan's batsmen struggled on a slow paced pitch after captain Younus Khan won the toss and decided to bat.
Pakistan leads the five-match one-day series 1-0 following their four-wicket win in the first match on Wednesday.
Opener Salman Butt top-scored with a resolute 57 while Shahid Afridi hit a 40-ball 41 to anchor the innings after Hauritz removed the middle order with some accurate off-spin.
Butt held one end intact after Pakistan lost debutant opener Ahmed Shahzad (four) in the third over. Younus (28) helped Butt add 53 for the second wicket before edging paceman Ben Laughlin to wicket-keeper Brad Haddin.
Hauritz further derailed the Pakistan innings by dismissing Shoaib Malik (seven) and Misbah-ul-Haq (12) in quick succession before removing a dangerous looking Butt in the 34th over. Butt hit six boundaries during his snail-paced 112-ball knock. Hauritz could have had a fourth wicket and blown away Pakistan for a much lower total had Ben Laughlin held on to a high catch from Afridi when the batsman was on only three.