Fell for a *hack* download for a game now random apps are downloading! What can I do?

[AC Question]

fell for a *hack* download for a game now random apps are downloading!

I downloaded a apk for a hack from a website I installed it now random apps are downloading but they aren't in downloaded apps they somehow moved them to default apps I can't uninstall them I can only turn them off but they keep working now ads are popping up every few seconds my phone is very hot I factory reset my phone but the apps are still there here are the apps I've noticed so far apus,cool browser plus subway ads solitare game also pops up not downloaded but playable please help!