The flag is typically found by or performing LSB steganography on the images found inside.
Executing binwalk bmwm4custom.rar checks for appended files (like JPEGs or ZIPs) hidden within the archive structure. 2. Archive Inspection
Check images for hidden data using steghide extract -sf image.jpg .
Running file bmwm4custom.rar identifies it as a RAR archive .
If the archive is password-protected, the first step is checking for "RockYou" or challenge-specific hints. Tools like John the Ripper or hashcat are used to crack the password: Extract the hash: rar2john bmwm4custom.rar > hash.txt
If the extracted files (like images of a BMW M4) appear normal, the flag is likely hidden using steganographic techniques.