From here you can browse all malware analysis in the database by hash.

The output is sub-categorized by the first three sets of Octets. To browse to your hash, you can either search for it, or click through the first 3 sets of bytes in the hash of the malware to locate the matching output if it exists.

Browse 21 a9 38
21a9380f5c94ac2d73228de04d8c221238ce8a5b 21a938480d8da67c46c6e75de4689807789c4092