Usei o 'exiftool' para extrair os arquivos.

I used 'exiftool' to extract the files.

Nice distraction :)

hint-> foremost to extract data from the given file

binwalk and foremost are the key of everything

binwalk and foremost are the key of everything

Struggled a bit with binwalk and used foremost. AND learned most from the comments. Thx

I have a related question to this challenge:

In this CTF we just had one picture to analyse. Assume you have hundreds and want to find out if something is hidden. How would you do this in a fast way?

I opened the file and saved a copy of it without changing anything (Linux Mint default picture viewer) and recognized that the file size changed. I compared this too a "normal" JPEG and there the filesize remained same.

Question: Would this be a reliable way to determine if something additionally is in the file? How would you do this?

binwalk image binwalk --extract --dd='.*' image folder will be created where all the hidden files will be stored cd to that folder open the new image there u go u can see the flag

I spent so long trying to open the zlib file :(

If you're too lazy on binwalk, try cyberchef!!!!!!!!!!!

got it with cyberchef.. nice one

idk why people are downvoting you. You're a lifesaver! Cyberchef is definitely being saved as a bookmark for me. I spent over an hour trying to open the ZLIB file smh

true!! cyberchef is such a godsend!

Thanks, kind stranger

If you are a beginner like me then refer this site to learn amazing things: https://fareedfauzi.gitbook.io/ctf-checklist-for-beginner/

Thanks

thanks mate

King

You should be at the top!

binwalk is unintuitive, with a misleading man page. It also extracts the ghost png data as a .zlib file, which is misleading. foremost extracts the hidden file easily.

Thanks for the hint, kind stranger.