UpDroid dataset consists of 2,479 samples belonging to 21 malware families, of which most have been discovered in just the last few years (after 2015). While this dataset gives an overview of recent malware, it will also be useful for researchers working on dynamic analysis. You can find more details on the dataset in the paper.
@inproceedings{aktassen2018updroid,
title = {UpDroid: Updated Android Malware and Its Familial Classification},
author = {Aktas, Kursat and Sen, Sevil},
booktitle = {Nordic Conference on Secure IT Systems},
pages = {352--368},
year = {2018},
publisher = {Springer},
}