Did you debug or disassemble the executable code of this binary file ? Or how do you know what exactly and what functions this file performs ?
Sorry, but a "good word" about the non-harmful activity of binaries is not enough for me.
Binary executabe code can do a lot of things - awaiting for an opportune moment.
Open-Source belongs on GitHub or other public web-space.
I'm always worried about a binary file that comes from an unknown source. I don't even know its purpose... so I don't know why the action of this binary is not fully replaced in the python code. What is the need for a binary separate file in this case at all.
I'm not saying the file is necessarily malicious... it's not... but I'm saying I don't trust it... until I know exactly what it's for and how it's being used.
I found almost nothing in the code, except for a few runs of this file, with the parameter "exit".
I don't know exactly what the binary file does, but anyway it can be replaced with the Python language. There is also a huge number of shell-scripts that could be replaced with the Python language as well.