A last-gasp header from Craig Malcolm ensured Stranraer a replay against Dunfermline as they drew 2-2 in the William Hill Scottish Cup fourth round.Midfielder Andy Geggan put the visitors in front after 14 minutes when he out-jumped goalkeeper David Mitchell to the ball from Lewis Martin's long free-kick.Joshua Falkingham came close to doubling their lead after connecting with Ryan Thomson's cut-back inside the box but Mitchell saved well.Dunfermline made it two in the 61st minute when Ross Millen's free-kick was headed in by defender Gregor Buchanan.The hosts pulled one back after William Gibson's speculative long-range effort found the net with 10 minutes remaining.And Malcolm completed his side's unlikely revival deep into added time when he rose highest to nod home inside a crowded penalty area.