For the full write-ups, please visit this [link](https://ctf-writeups.wonyk.com/Writeups/DawgCTF%202021/Binary%20Bomb/Phase%201)

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We are provided with an application – secret_app.exe in this challenge

Running it on Windows command prompt gives us this screen:


As this is a executable file run on Binary machine code, I used OllyDbg to do a quick scan of the code.

Some digging of the code led to this:


Username: not_username
Password: not_password

Entering the following details into the secret_app.exe file gives us this:


Viola!

Flag: DawgCTF{4pp_sup3r_53cret}