Not a great deal in Malovitsa if we are honest!
Apart from the winter mountain sports (including ice climbing), those looking for cultural highlights of Bulgaria do have a few options in the local area. For example, the UNESCO Rila Monastery is worth a visit.
The spa town and ski station of Sapereva Banya is well worth a visit for both reasons and of course then there is Borovets just up the road if you want to fill up on over priced authentic (made in China) souvenirs of Bulgaria.
Another consideration would be to keep going down the Dupnitsa road and turning right back towards Pernik and then on to Sofia (about an hour away) which not only has the ski resort of Vitosha but also more tourist opportunities than you can shake a stick at!