StegoAnons
Not sure if this is anything yet. Still poking around. I work with a ton of different stego tools and scripts as I attempt to detect patterns. The other night I was using StegoDetect and StegoLSB (python stego tools family) with the recent flag image and the punisher_red image which appears to be identical to the original Q-posted (BTW).
I was getting strange results playing with the LSB number 2. The file was reporting incorrect sizes due to bit decision. Typically defaults to 2 when playing with LSB. I changed it to 17 for fun and got interesting results. Still working to figure out the file type signatures it produced…but just wanted to throw this out to the group in case you are playing with these types of tools. Here are the command lines I was using on the files.
stegolsb steglsb -r -i flag.png -o output_file. -n 2
and
stegolsb steglsb -r -i flag.png -o output_file -n 17