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 28 b1 1f
28b11f45f9cb27740c7e886ddd7c4d6bbe1d5f9a 28b11fd660629fee06995975b7c5568eb13bd716 28b11fdab8c7ba669ef66a1ea9f59e012c3fa845