I played m0lecon CTF 2022 with my CTF team TEAM-ASGARD. These are the few challenges those i solved.

Crypto - Unrecognizable

The challenge contains these two images.

Immediately i wrote this script to make xor of these two images.

from PIL import Image, ImageChops
im1 = Image.open('challenge.png')
im2 = Image.open('whoami.png')

im3 = ImageChops.add(ImageChops.subtract(im2, im1), ImageChops.subtract(im1, im2))
im3.save("im3.png")

Which gives new image consist of the flag in it.

Flag: ptm{y0u_r34lly_7r4c3d_m3}

Misc - f33linegCut3

The challenge contains this selfie.jpeg image.

Used exiftool to read metadata. exiftool selfie.jpeg and found this comment in metadata.

Comment:010101000110100001100101010011010110100101100111011010000111010001111001010100000110000101110111

Then I followed this Bin > Hex > Ascii Using Cyberchef.

The result is of this is TheMightyPaw

Now I tried steghide extract -sf selfie.jpeg and it results a mesage.zip which is password protected.

Unzipped the message.zip using TheMightyPaw as the password. It gave us the flag.

Flag : ptm{n33d_M0r3_c4TN1p_b0ss}

Misc - FileRecover

In this challenge a capture.pcap is attached.

By analyzing it in wireshark. I found that in one packet large size of data has been transmitted. I exported the packet data as the Image. The image contains the flag we need.

Flag : n37w0rk_ch4ll3n935_4r3_fun_2