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Hash fields

Elastic Stack Serverless

The hash fields represent different bitwise hash algorithms and their values.

Field names for common hashes (e.g. MD5, SHA1) are predefined. Add fields for other hashes by lowercasing the hash algorithm name and using underscore separators as appropriate (snake case, e.g. sha3_512).

Note that this fieldset is used for common hashes that may be computed over a range of generic bytes. Entity-specific hashes such as ja3 or imphash are placed in the fieldsets to which they relate (tls and pe, respectively).

Field Description Level
hash.md5 MD5 hash.

type: keyword
extended
hash.sha1 SHA1 hash.

type: keyword
extended
hash.sha256 SHA256 hash.

type: keyword
extended
hash.sha384 SHA384 hash.

type: keyword
extended
hash.sha512 SHA512 hash.

type: keyword
extended
hash.ssdeep SSDEEP hash.

type: keyword
extended
hash.tlsh TLSH hash.

type: keyword
extended
Field Description Level
hash.cdhash Code directory hash, utilized to uniquely identify and authenticate the integrity of the executable code.

type: keyword

example: 3783b4052fd474dbe30676b45c329e7a6d44acd9
extended

The hash fields are expected to be nested at:

  • dll.hash
  • email.attachments.file.hash
  • file.hash
  • process.hash

Note also that the hash fields are not expected to be used directly at the root of the events.