YCEP 2025 (Training) - Calming

Challenge Description

Description

This is a binwalk practice challenge to be gone through during the workshop.

• Author: Jun Wei
• Category: forensics
• Difficulty: easy
• Discord: syn3pz

Files

• calming.jpg

Calming - Solution

To solve this challenge, run binwalk -e on the given image. This challenge will be gone through during the workshop.

binwalk -e calming.jpg

┌──(nepz㉿nepz)-[~]
└─$ binwalk -e calming.jpg
 
DECIMAL       HEXADECIMAL     DESCRIPTION
--------------------------------------------------------------------------------
0             0x0             JPEG image data, JFIF standard 1.02
382           0x17E           Copyright string: "Copyright (c) 1998 Hewlett-Packard Company"
2188529       0x2164F1        Zip archive data, at least v2.0 to extract, name: hidden/
2188598       0x216536        Zip archive data, at least v2.0 to extract, name: hidden/hidden.png
4268033       0x412001        End of Zip archive, footer length: 22

A file called hidden.png will be extracted into a directory called _calming.jpg.extracted/hidden.

This file will contain the flag in plaintext, as shown below.

Flag: YCEP25{pr3tty_c00l_1m4ge_m4g1c}