DawgCTF 2025 - Es ist alles in Butter

Published: April 22, 2025 | CTF: DawgCTF 2025
CTF OSINT Geolocation

Es ist alles in Butter (OSINT)

Category OSINT (Open Source Intelligence)
Points Unknown
Difficulty Hard
Es ist alles in Butter Challenge Description

This challenge involved identifying a supermarket located in Germany based on the challenge description and the provided image. The title "Es ist alles in Butter" is a German phrase that roughly translates to "Everything is fine" or literally "Everything is in butter."

Understanding the Challenge

The challenge provides a challenge description in French and an image of what looks like some sort of limestone castle or something similar. The description can be translated easily with google translate (or if you know French) and we get the hint that we are looking for this certain supermarket with a bread slicer. This gives us a clue that it is either a bakery or a larger supermarket, which would typically have a bread slicer.

Store Interior Image Store Exterior Image

Analyzing the Images

The first step, after translating the challenge description, was to carefully examine all the provided image for clues:

  1. First, we get an image of the exterior of the nearby building
  2. This exteror shot can be thrown into google lens or some other reverse image search to help us narrow down the name of the location
  3. One of the results tells us that the name is Schultheiss Quartier, and looking at the street view of this location confirms that this is where the photo was taken
Street View 1 Street View 2

Narrowing Down the Location

After identifying the location in the photo as Scultheiss Quartier, I searched for all supermarket locations in the area. I then systematically checked each location using Google Street View and satellite imagery to find a match with the provided image that could be a potential candidate.

Aerial View Search

Key features I looked for in the images:

Finding the Exact Location

Building Identification Map Location

After looking at the locations and street view of the most probable supermarkets, I was able to identify the specific store as Kaufland Berlin-Moabit, located in the Moabit district of Berlin. This location was directly next to the location where the photograph was taken so it seemed like it was definitely the most likely candidate. The formatting for this flag was the most annoying part as it was not indicated which parts of the store name was the actual flag so trying different variations I finally landed on the correct flag. The other first submitted flags were a nearby bakery which didn't end up being correct.

Final Submission
FLAG: DawgCTF{Kaufland Berlin-Moabit}
Key Learning: This challenge demonstrates the power of geolocation and visual analysis in OSINT investigations. By carefully examining architectural details, signage, and surrounding landmarks, it's possible to pinpoint specific locations even in large cities with multiple similar stores. The challenge also highlights the importance of understanding cultural and linguistic contexts in international investigations.