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OSINT analysis

Case folders

I solved OSINT CTF-style exercises end to end and recorded them: where I got stuck, and which clue led where.

Worth watching if you are starting out and want the reasoning to click.

The videos have no narration, only light background music; every step is written in on-screen subtitles. Each folder also gives the evidence chain, calculations, limits and sources in writing.

  1. Gralhix #021 · Easy · 3.9 minThe map on the chocolate barWhich place do the map embossed on a chocolate bar and the satellite crop beside it show?Open folder →
  2. Gralhix #003 · Medium · 3.7 minThe handshake at the doorIn which building, and on which day, was the April 2017 handshake photo taken?Open folder →
  3. Gralhix #016 · Hard · 5.3 minThe terrain behind the aircraftWhere is the terrain in the A-10 photo shared on 25 November 2020?Open folder →
  4. Gralhix #004 · Easy · 3.5 minThe island inside the reefWhich island and resort are in the drone photo, what are the coordinates, and which way is the camera facing?Open folder →
  5. Gralhix #007 · Medium · 3.4 minThe sculpture and the posterWhere and in which year was the photo taken? What is the website on the poster?Open folder →
  6. Gralhix #014 · Hard · 4.2 minThe night cameraWhich city and building is the CCTV frame from? What event happened on that date, and how large was it?Open folder →

Exercises: Sofia Santos / Gralhix. Analysis and walkthrough: Ahmet Göker. Screenshots and photos remain the property of their owners.