TLDR; obfuscated .Net binary which was decrypting hardcoded, encrypted password with hardcoded key. I used avaliable deobfuscator, did some reversing, found encypted password and hardcoded key and wrote simple python script that decrypted it. Full [writeup](https://github.com/Billith/writeups/blob/master/KipodAfterFree2019/re/package2.md)