Description

This challenge is of easy difficulty. Some data has been hidden somewhere in this archive. Good luck finding it!

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Question: How to retrieve the hidden data?

Resolution

This challenge involved finding hidden data within an archive file. The archive provided was named “secretzip.zip.” Here are the steps we used to solve it:

We began by extracting information about the ZIP archive using various tools, including zipography-info and binwalk. We also tried listing the contents using commands like bsdcat and zipography-extract.

After a few different extraction attempts, we eventually ran foremost to carve the files:

 foremost -i secretzip.zip -o output_directory 

After extracting the files, we inspected them closely. One of the key findings was a distorted image (provided in the file 00000173.png), which required careful examination.

Using an image viewer, we were able to notice some hidden text in the bottom part of the image. It was well camouflaged, but with careful inspection, we identified the following flag:

Flag was Hero{Dont_be_fooled_by_appearances}.

This shows that the flag was hidden visually in the image but blended into the background to be inconspicuous.