GEOINT Write-Up: Krakow Shooter (OSINT Industries CTF)
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In the Krakow Shooter scenario, authorities conducted a raid on a suspect’s family residence in Ostrowiec Świętokrzyski, Poland, following an incident in Kraków. Using a single starting image (entrance.jpg), our objective is to determine the approximate address of the raided building and identify the name of the nearby military gear shop.
Platform: OSINT Industries CTF · Category: GEOINT · Difficulty: Easy / 50 points
1. Challenge briefing and objective
- Objective: find the approximate address of the building in the photo and the name of the nearby military gear shop.
- Flag format:
OSINT{shop_name}
2. Visual analysis (entrance.jpg)
When approaching a GEOINT image, the first step is to extract hard anchors (explicit text, street signs or distinct architectural markers) before jumping into broad satellite searches.
Examining entrance.jpg reveals several high-value visual clues:
- Street and building plaque: Mounted on the upper left facade is a standard blue Polish address plaque clearly reading
1/5 Tylna. - Architecture and street furniture: The building features a two-tone (peach/yellow) facade with a recessed ground-floor passageway. Directly in front of the passage are red-and-white bollards, concrete planters and a blue pedestrian crossing sign (
D-6) on the right.
3. Pinpointing the address on Google Maps
With both the city (Ostrowiec Świętokrzyski) from the briefing and the exact street number (Tylna 1/5) from the plaque, we do not need complex reverse image searches or sun-angle calculations.
- Entering
Tylna 1/5, Ostrowiec Świętokrzyskidirectly into Google Maps drops the pin right onto the residential block in the city centre. - Checking the Street View imagery and building footprint confirms the passageway entrance, colour scheme and surrounding layout seen in
entrance.jpg.
4. Expanding the search perimeter
Once the primary anchor (Tylna 1/5) is locked in, the final step is a simple proximity sweep for points of interest (POIs) matching the target description (“military gear shop”).
Zooming out from Tylna toward the main road north-west of the block (Henryka Sienkiewicza), a quick scan of nearby storefronts highlights a specialised tactical and surplus retailer within short walking distance:
- Store name: BASTION Survival Militaria Demobil
- Address: Henryka Sienkiewicza 32, 27-400 Ostrowiec Świętokrzyski, Poland
- Category: Military supply store (military surplus / tactical gear)
5. Flag submission
Following the challenge’s example structure (OSINT{ARMORY_Military_Gear_Shop}) and replacing spaces with underscores gives us the final flag:
OSINT{BASTION_Survival_Militaria_Demobil}