Downloaded an elf64-x86-64 executable file that cannot be parsed using objdump

1. I am using the ubuntu14.04 system. I am looking for an elf64-x86-64 executable file on the Internet. Use file to view the file types as follows:

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2objdump

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ask the great god for advice? be deeply grateful!

C
Mar.11,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1ea3b65-47a33.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ea3b65-47a33.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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