it ez

Of course using file is easy, but it is also good to know tool like strings

cool and simple little introduction. I understand there are a bunch of tools to do this, What are your guys favorite tools. I just used Exiftool with GUI

same with cli

CTFlearn{ILoveJakarta}

Wow! Very easy and very silly indeed

hehe...

Three ways I found to solve this challenge from command line:

1. strings with pipe and head
2. exiftool sudo apt install libimage-exiftool-perl with grep
3. xxd with pipe and head

If you don't know these tools and commands, read about them and learn how they work. Nice beginner friendly CTF.

Thanks, this was designed to be a very beginner friendly CTF challenge.

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just "file <filename>" is one more way.