STM32CubeMX software download and installation:
http://www.stmicroelectronics.com.cn/ Home Search STM32CubeMX you can find the download page
MDK5 latest version of the software download:
http://www2.keil.com/mdk5
MDK's pack download path: https://www.keil.com/pack
MDK's pack download path: https://www.keil.com/pack