Crack The Lock

You found a small executable program labeled lockbox. It appears to check for a secret password before revealing its contents. Your task is to analyze the program, understand the check, and retrieve the hidden password to unlock the flag.

Flag Format: BUBT-CTF{***}

Click Here to download the file.. (598 downloads )

Hint:
Reverse the program logic to find the password or computation that reveals the flag.
Strings may be visible in the binary. Try strings lockbox.
The program may perform simple mathematical operations or XOR on the input.
Tools like Ghidra, IDA Free, Binary Ninja, or even Python scripts can help analyze the logic.