Requesting hints for CTF picture

For an ongoing private CTF we received this image, no instructions, 5 words should pop out somehow. I’ve ran classic stegano approach but found nothing. Anyone has any hints?

The picture is a TIFF embedded in JPEG, all EXIF removed, nothing on alpha, no interesting LSB, usual software show nothing interesting, stegoveritas give trailing data and two binaries but looks false positive.

Thanks in advance!