security project

I have a project proposal about security , Maware analysis, and I have to choose one topic of the following : 1- Enumerating all possible methods a smartphone ransomware can use to encrypt as much data as possible on an android smartphone. You need to implement all these methods into a model ransomware 2- Downloading ~2Million malwares, decompiling them and extracting the library calls (like DLL imports in Windows) in the form of directed graphs. You need to design and develop an automated web tool to perform the analysis.