Blue Shadow Forensics Challenge

This one is stumping me. And I hope the following doesnt have spoilers. I tried to redact important parts.
I have the binary, ive been debugging it and noticed that it performs logical *** within a procedure call named E******.
BUT… this looks like a red herring? There are no ASCII characters which will pass thru this procedure and output HTB{…} as the third character in the input would have to be 0x14
I noticed there is a very interesting unused function call named RIt and also noticed that is not ever called from within the binary, and this sounds like it would be the key to unlocking it.
Im trying various things but it always ends in a SEGFAULT or an exception for unmapped memory when I try to force it to jump to procedure R
it.

I would appreciate a PM with a tip to point me in the right direction.