$ 7z l secret_payload ... 0 0 0 0 0 -rw-r--r-- 0 0 secret.txt Extract:
$ pngcheck -v QfUhZZXf Output (truncated for brevity): https- ranoz.gg file QfUhZZXf
PNG file: QfUhZZXf (640x480) Chunk tEXt (keyword=Comment, text=...) Chunk iTXt (keyword=secret, compression=deflate, text=...) The iTXt chunk named contains a compressed blob. Extract it with exiftool : $ 7z l secret_payload
$ head -c 8 QfUhZZXf | hexdump -C 00000000 89 50 4e 47 0d 0a 1a 0a |.PNG....| The file is a that also contains additional data (likely steganography or an embedded archive). 5. Extracting Hidden Data from the PNG 5.1. Visual Inspection $ display QfUhZZXf # (or any image viewer) The image is a simple abstract pattern – nothing obvious. 5.2. Metadata & Chunk Analysis PNG files can embed arbitrary data in ancillary chunks (e.g., tEXt , zTXt , iTXt , eXIf ). Use pngcheck : $ exiftool -iTXt:secret QfUhZZXf >
Run binwalk and strings for deeper insight:
$ curl "https://ranoz.gg/download.php?file=download.php%3fsource" No luck.
$ exiftool -iTXt:secret QfUhZZXf > secret_compressed.bin $ file secret_compressed.bin secret_compressed.bin: zlib compressed data