Down Bad

This is a writeup of the forensics challenge Down Bad from the TFC CTF

Points: 50

Premise

The flag is right there!

down_bad.png

Challenge file:

https://drive.google.com/file/d/1k16yKbV_6fgrSFjg0GVuEVWDvqwCPpok/view?usp=drive_link Links to: down_bad.png

Observations

Opening the file, we’re greeted with an following image

Solution

An good first step to do in a challenge with an image is checking it with a tool like https://fotoforensics.com/, so we navigate there and upload the image. At first, with the ELA filter, we get no results.

Moving down the list to the left however, we skip Games and go to Hidden Pixels,

Here, at the bottom of the image, we find the flag:TFCCTF{28ae25c96850245ffdd70a880158f9f3}

Tools and sources used:

• https://fotoforensics.com/