This tool can automagically find short XOR keys in a XOR encrypted binary file, and use that to decrypt the XOR encrypted binary. Most parameters are good on default but if it is not working for you, you might try to fine-tune those.
Requirement:
+ Python 3.x
+ itertools module

auto XOR DECRYPTOR
Usage and download from source:
pip3 install more-itertools git clone https://github.com/MRGEffitas/scripts && cd scripts python3 auto_xor_decryptor.py
Source: https://github.com/MRGEffitas