Overview
Given a JPEG image babyy.jpg, we must find hidden layers inside.
Reconnaissance
We run binwalk on the file to detect signatures of other embedded file systems or media.
Exploitation Strategy
Running binwalk -e babyy.jpg extracts 3 separate image files. Inspecting the EXIF metadata of these three images reveals three encoded segments. Concatenating them in order yields the flag.
Solution Code
binwalk -e babyy.jpg
exiftool *.jpg
Concatenate 3 parts -> STG{Unna_th2nn3_P2Th0ka_}Flag
STG{Unna_th2nn3_P2Th0ka_}