Garbage Runner
Description
CTF: Whitehacks 2022
Author: xbowery
Difficulty: Easy
The mischievous aliens have dumped our lovely poster into the trash can, maybe you can walk through it to find some treasure?
treasure.pdf
Solution
Pwned by @skytect (opens in a new tab)
maybe you walk through it
Try binwalk?
$ binwalk treasure.pdf
DECIMAL HEXADECIMAL DESCRIPTION
--------------------------------------------------------------------------------
0 0x0 PDF document, version: "1.7"
630 0x276 Zlib compressed data, default compression
1120 0x460 JPEG image data, JFIF standard 1.01
1150 0x47E TIFF image data, big-endian, offset of first image directory: 8
16313 0x3FB9 JPEG image data, JFIF standard 1.01
27201 0x6A41 JPEG image data, JFIF standard 1.01
27231 0x6A5F TIFF image data, big-endian, offset of first image directory: 8
36866 0x9002 JPEG image data, JFIF standard 1.01
36896 0x9020 TIFF image data, big-endian, offset of first image directory: 8
65132 0xFE6C JPEG image data, JFIF standard 1.01
184978 0x2D292 Zlib compressed data, default compression
185612 0x2D50C Zlib compressed data, default compression
208416 0x32E20 Zlib compressed data, default compressionCool now let's foremost it to extract all the files nicely.
$ foremost -i treasure.pdfAfter looking through the output folder, you would find a sus image in
output/jpg/00000002.jpg with the flag:
WH2022{m0r3_th4n_m33t5_th3_3y3}