Rating:

# pallets-of-gold (394 solves, 289 points)

## Description:
It doesn't really look like gold to me...

[pallets-of-gold.png](pallets-of-gold.png)

## Solution
This png just seems to be a bunch of noise, so we can begin with initial checks like file, strings, exiftool etc. Below is the output (abridged).


Desktop pranav$file pallets-of-gold.png pallets-of-gold.png: PNG image data, 3191 x 227, 8-bit colormap, non-interlaced Desktop pranav$ exiftool pallets-of-gold.png
Bit Depth : 8
Color Type : Palette
Interlace : Noninterlaced
Palette : (Binary data 768 bytes, use -b option to extract)


Immediately, the 8-bit colormap/palette jumps out. When I extracted this binary data however, it seemed like gibberish, so I tried using [stegonline](https://stegonline.georgeom.net/image), which is a great website to use for images like this. Once we upload the file, we're told this.

![](stegonlineinput.png)

If we click browse colour pallette, the flag appears in the preview. Once we download the image, we can get the flag with a bit of guesswork for the iffy characters. (The image below looks empty, but open it a new tab and you'll see)

![](flag.png)

## Flag
flag{plte_chunks_remind_me_of_gifs}

Original writeup (https://github.com/BASHing-thru-challenges/HSCTF-2021-Writeups/tree/main/misc/pallets-of-gold).