How to identify and crack a Streebog-512 (GOST 2012) hash

Streebog-512 (GOST 2012) is a raw / unsalted hash type. It is fast and typically unsalted, which makes weak passwords recoverable quickly on consumer GPU hardware. This page shows how to recognise it and the exact commands to attack it.

All identification runs locally in WebAssembly. The commands below write the hash to a local file on your machine — nothing is sent to this site.

Identifying the hash

The hash identifier on the home page detects Streebog-512 (GOST 2012) entirely in your browser — your hash is never uploaded. A typical example looks like this:

8e945da209aa869f0455928529bcae4679e9873ab707b55315f56ceb98bef0a7362f715528356ee83cda5f2aac4c6ad2ba3a715c1bcd81cb8e9f90bf4c1c1a8a

Cracking Streebog-512 (GOST 2012) with hashcat

Save the hash to a file and run hashcat in mode -m 11800. Start with a wordlist such as rockyou.txt:

echo '8e945da209aa869f0455928529bcae4679e9873ab707b55315f56ceb98bef0a7362f715528356ee83cda5f2aac4c6ad2ba3a715c1bcd81cb8e9f90bf4c1c1a8a' > hash.txt && hashcat -m 11800 hash.txt /usr/share/wordlists/rockyou.txt

Add a rule set to mutate dictionary words (capitalisation, leetspeak, appended digits) and dramatically widen coverage:

echo '8e945da209aa869f0455928529bcae4679e9873ab707b55315f56ceb98bef0a7362f715528356ee83cda5f2aac4c6ad2ba3a715c1bcd81cb8e9f90bf4c1c1a8a' > hash.txt && hashcat -m 11800 hash.txt /usr/share/wordlists/rockyou.txt -r /usr/share/hashcat/rules/best64.rule

Cracking Streebog-512 (GOST 2012) with John the Ripper

John the Ripper can attack the same hash with the Streebog-512 format:

echo '8e945da209aa869f0455928529bcae4679e9873ab707b55315f56ceb98bef0a7362f715528356ee83cda5f2aac4c6ad2ba3a715c1bcd81cb8e9f90bf4c1c1a8a' > hash.txt && john --format=Streebog-512 --wordlist=/usr/share/wordlists/rockyou.txt hash.txt