It's an old post, but I got here after finding the same solution, my trigger was by wanting to verify that the file was actually an arm executable, I used file, that gave you the linked lib, checking it against another executable that worked, you see the diff:
/opt/logmein-hamachi/bin/hamachid: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.3,
root@260f687148dd:/# file /usr/bin/joe
/usr/bin/joe: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3