BSidesNYC CTFd Writeup - Secret Map: Scratching the surface

It was a basic challenge for me. Whenever I get a image forensics challenge, the first two checks are exiftool and binwalk.

$ exiftool map.jpg 
ExifTool Version Number         : 13.25
File Name                       : map.jpg
Directory                       : .
File Size                       : 870 kB
File Modification Date/Time     : 2025:10:18 12:19:55-04:00
File Access Date/Time           : 2025:10:18 12:20:21-04:00
File Inode Change Date/Time     : 2025:10:18 12:19:55-04:00
File Permissions                : -rw-rw-r--
File Type                       : JPEG
File Type Extension             : jpg
MIME Type                       : image/jpeg
JFIF Version                    : 1.01
Exif Byte Order                 : Big-endian (Motorola, MM)
X Resolution                    : 96
Y Resolution                    : 96
Resolution Unit                 : inches
Software                        : Paint.NET 5.1.9
Compression                     : JPEG (old-style)
Thumbnail Offset                : 218
Thumbnail Length                : 3808
XMP Toolkit                     : Image::ExifTool 13.38
Notes                           : flag{m47ry05hk4}
Image Width                     : 1024
Image Height                    : 1536
Encoding Process                : Baseline DCT, Huffman coding
Bits Per Sample                 : 8
Color Components                : 3
Y Cb Cr Sub Sampling            : YCbCr4:4:0 (1 2)
Image Size                      : 1024x1536
Megapixels                      : 1.6
Thumbnail Image                 : (Binary data 3808 bytes, use -b option to extract)

The notes of exiftool give the flag - flag{m47ry05hk4}