magic(5) on FreeBSD
The text 786976f28888, as FreeBSD 13.0-RELEASE, FreeBSD 12.3-RELEASE, FreeBSD 12.2-RELEASE shipped it.
file command's magic pattern file
The text 786976f28888, as FreeBSD 13.0-RELEASE, FreeBSD 12.3-RELEASE, FreeBSD 12.2-RELEASE shipped it.
file command's magic pattern file