Morrison, who made his first Premiership appearance since March in the 0-0 draw with Southampton on Saturday, scored twice and Jovan Kiroski netted the other in the behind-closed-doors friendly at St. Andrew's.
Gareth Farrelly grabbed a hat-trick for the visitors.
As well as Morrison and Kirovski the Blues side included other first team regulars Bryan Hughes, Aliou Cisse, Darren Carter, Paul Devlin and Olivier Tebily.