VishwaCTF-2023 Writeups

Our writeups for VishwaCTF 2023

Team Name - BITSkrieg
Rank - #6/1090
Flags - 28/47
First Bloods - 3
Points - 7118

I am an Investigator

• We are given a corrupted image RealFirst.png. As we can see the header reads BHAI :)
• I fixed the magic bytes to 89 50 4E 47 and got the image
• The image talks about Latitude & Longitude as being the length and breadth of the image respectively (in cm)
• I checked the metadata of the image using exiftool
• We get size of image as 6186 x 614 & resolution as 118.1098901

$Latitude = \frac{6186}{118.1098901} = 52.3749$

$Longitude = \frac{614}{118.1098901} = 5.1985$

• On entering these values on Google Maps, we landed up somewhere in Netherlands
• I checked out Beatrixpark Dock cause it seemed the nearest tourist attraction & I found a review by vishwa_crimebranch
• As it said, I went to the instagram with the same username & found a Drive link in the post, it contained a .mp4 video with a very small width

Super23

Email Incoming

Nice guys finish last

Quick Heal

Reversing is Ezeeee....

Eeezzy

Phi-Calculator

Guatemala

Mystery of Oakville Town

The Sender Conundrum

1nj3ct0r

Just Files

Privacy Breach