magic(5) on FreeBSD
The text 0b540c844d65, as FreeBSD 12.1-RELEASE, FreeBSD 12.0-RELEASE, FreeBSD 11.3-RELEASE shipped it.
file command's magic pattern file
The text 0b540c844d65, as FreeBSD 12.1-RELEASE, FreeBSD 12.0-RELEASE, FreeBSD 11.3-RELEASE shipped it.
file command's magic pattern file