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Class: Collection

Collections are versioned snapshots of an ATT&CK dataset grouping all STIX objects that constitute a specific release of an ATT&CK domain or curated subset. ATT&CK distributes one collection per domain per release.

The x_mitre_contents property provides an ordered list of versioned object references (ID + modified timestamp pairs) enumerating every STIX object included in this collection. This precise versioning allows consumers to reconstruct the exact state of the knowledge base at any given ATT&CK release.

Bundle validation: In a distributing STIX Bundle, the Collection must be the first object in the bundle's 'objects' array. All STIX IDs referenced in x_mitre_contents must be present as objects within the same bundle.

See the ATT&CK Workbench collections documentation for detailed design rationale and usage guidance.

URI: attack:Collection

 classDiagram
    class Collection
    click Collection href "../Collection/"
      AttackObject <|-- Collection
        click AttackObject href "../AttackObject/"

      Collection : confidence

      Collection : created

      Collection : created_by_ref

      Collection : description

      Collection : extensions

      Collection : external_references





        Collection --> "*" ExternalReference : external_references
        click ExternalReference href "../ExternalReference/"



      Collection : granular_markings





        Collection --> "*" GranularMarking : granular_markings
        click GranularMarking href "../GranularMarking/"



      Collection : id

      Collection : labels

      Collection : lang

      Collection : modified

      Collection : name

      Collection : object_marking_refs

      Collection : revoked

      Collection : spec_version





        Collection --> "1" SpecVersionEnum : spec_version
        click SpecVersionEnum href "../SpecVersionEnum/"



      Collection : type

      Collection : x_mitre_attack_spec_version

      Collection : x_mitre_contents





        Collection --> "1..*" ObjectVersionReference : x_mitre_contents
        click ObjectVersionReference href "../ObjectVersionReference/"



      Collection : x_mitre_deprecated

      Collection : x_mitre_modified_by_ref

      Collection : x_mitre_old_attack_id

      Collection : x_mitre_version

Inheritance

Slots

Name Cardinality and Range Description Inheritance
x_mitre_modified_by_ref 0..1
StixIdentifier
The STIX ID of the identity object that created the current version of this o... direct
x_mitre_contents 1..*
ObjectVersionReference
Ordered list of versioned references to all ATT&CK STIX objects included in t... direct
x_mitre_attack_spec_version 1
SemverString
The version of the ATT&CK Data Model specification used to construct this obj... AttackObject
x_mitre_version 1
AttackVersionString
The version of this ATT&CK object content in 'major AttackObject
x_mitre_deprecated 0..1
Boolean
Boolean flag indicating that this ATT&CK object has been deprecated and shoul... AttackObject
x_mitre_old_attack_id 0..1
String
A legacy ATT&CK ID previously assigned to this object before a knowledge base... AttackObject
type 1
StixTypeName
STIX object type Core, StixEntity
spec_version 1
SpecVersionEnum
STIX specification version Core
id 1
StixIdentifier
STIX object identifier Core, StixEntity
created 1
Datetime
Creation timestamp Core
modified 1
Datetime
Modification timestamp Core
created_by_ref 1
StixIdentifier
The STIX ID of the identity object that first created this ATT&CK object Core
labels *
String
Terms used to describe this object Core
revoked 0..1
Boolean
Indicates whether this object has been revoked Core
confidence 0..1
Integer
Confidence that the producer has in this data Core
lang 0..1
String
Language of textual properties Core
external_references *
ExternalReference
External references to non-STIX information Core
object_marking_refs 1..*
StixIdentifier
Marking definition references applied to this object Core
granular_markings *
GranularMarking
Granular markings that apply to selected content Core
extensions *
String
Open-ended extension payloads Core
name 1
String
The name of this collection (e StixEntity
description 1
String
Details, context, and explanation about the purpose, scope, or version of the... StixEntity

In Subsets

Identifier and Mapping Information

Annotations

property value
stix_type x-mitre-collection

Schema Source

  • from schema: https://w3id.org/lmodel/attack

Mappings

Mapping Type Mapped Value
self attack:Collection
native attack:Collection

LinkML Source

Direct

name: Collection
annotations:
  stix_type:
    tag: stix_type
    value: x-mitre-collection
description: 'Collections are versioned snapshots of an ATT&CK dataset grouping all
  STIX objects that constitute a specific release of an ATT&CK domain or curated subset.
  ATT&CK distributes one collection per domain per release.

  The x_mitre_contents property provides an ordered list of versioned object references
  (ID + modified timestamp pairs) enumerating every STIX object included in this collection.
  This precise versioning allows consumers to reconstruct the exact state of the knowledge
  base at any given ATT&CK release.

  Bundle validation: In a distributing STIX Bundle, the Collection must be the first
  object in the bundle''s ''objects'' array. All STIX IDs referenced in x_mitre_contents
  must be present as objects within the same bundle.

  See the ATT&CK Workbench collections documentation for detailed design rationale
  and usage guidance.'
in_subset:
- attack_sdos
from_schema: https://w3id.org/lmodel/attack
is_a: AttackObject
slots:
- x_mitre_modified_by_ref
- x_mitre_contents
slot_usage:
  type:
    name: type
    required: true
    pattern: ^x-mitre-collection$
  id:
    name: id
    required: true
    pattern: ^x-mitre-collection--
  name:
    name: name
    description: The name of this collection (e.g., 'Enterprise ATT&CK', 'ATT&CK for
      ICS v14.1').
    required: true
  description:
    name: description
    description: Details, context, and explanation about the purpose, scope, or version
      of the objects contained in this collection.
    required: true
  created_by_ref:
    name: created_by_ref
    required: true
  object_marking_refs:
    name: object_marking_refs
    required: true
  x_mitre_contents:
    name: x_mitre_contents
    description: Ordered list of versioned references to all ATT&CK STIX objects included
      in this collection release.
    comments:
    - 'jsonschema_minItems: "1" validator_hint: validate-x-mitre-contents-cross-references'
    required: true

Induced

name: Collection
annotations:
  stix_type:
    tag: stix_type
    value: x-mitre-collection
description: 'Collections are versioned snapshots of an ATT&CK dataset grouping all
  STIX objects that constitute a specific release of an ATT&CK domain or curated subset.
  ATT&CK distributes one collection per domain per release.

  The x_mitre_contents property provides an ordered list of versioned object references
  (ID + modified timestamp pairs) enumerating every STIX object included in this collection.
  This precise versioning allows consumers to reconstruct the exact state of the knowledge
  base at any given ATT&CK release.

  Bundle validation: In a distributing STIX Bundle, the Collection must be the first
  object in the bundle''s ''objects'' array. All STIX IDs referenced in x_mitre_contents
  must be present as objects within the same bundle.

  See the ATT&CK Workbench collections documentation for detailed design rationale
  and usage guidance.'
in_subset:
- attack_sdos
from_schema: https://w3id.org/lmodel/attack
is_a: AttackObject
slot_usage:
  type:
    name: type
    required: true
    pattern: ^x-mitre-collection$
  id:
    name: id
    required: true
    pattern: ^x-mitre-collection--
  name:
    name: name
    description: The name of this collection (e.g., 'Enterprise ATT&CK', 'ATT&CK for
      ICS v14.1').
    required: true
  description:
    name: description
    description: Details, context, and explanation about the purpose, scope, or version
      of the objects contained in this collection.
    required: true
  created_by_ref:
    name: created_by_ref
    required: true
  object_marking_refs:
    name: object_marking_refs
    required: true
  x_mitre_contents:
    name: x_mitre_contents
    description: Ordered list of versioned references to all ATT&CK STIX objects included
      in this collection release.
    comments:
    - 'jsonschema_minItems: "1" validator_hint: validate-x-mitre-contents-cross-references'
    required: true
attributes:
  x_mitre_modified_by_ref:
    name: x_mitre_modified_by_ref
    description: 'The STIX ID of the identity object that created the current version
      of this object. In practice, always references MITRE''s canonical identity object:
      identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5. May differ from created_by_ref
      if the object was originally created by a third party and subsequently adopted
      or updated by MITRE.'
    comments:
    - 'validator_hint: must-match-mitre-identity-id'
    in_subset:
    - attack_sdos
    - attack_sros
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_modified_by_ref
    owner: Collection
    domain_of:
    - Technique
    - Tactic
    - Group
    - AttackCampaign
    - Mitigation
    - AttackMalware
    - AttackTool
    - Asset
    - DataSource
    - DataComponent
    - Matrix
    - Collection
    - DetectionStrategy
    - Analytic
    - AttackRelationship
    range: stix_identifier
    pattern: ^identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5$
  x_mitre_contents:
    name: x_mitre_contents
    description: Ordered list of versioned references to all ATT&CK STIX objects included
      in this collection release.
    comments:
    - 'jsonschema_minItems: "1" validator_hint: validate-x-mitre-contents-cross-references'
    in_subset:
    - attack_sdos
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_contents
    owner: Collection
    domain_of:
    - Collection
    range: ObjectVersionReference
    required: true
    multivalued: true
    inlined: true
  x_mitre_attack_spec_version:
    name: x_mitre_attack_spec_version
    description: The version of the ATT&CK Data Model specification used to construct
      this object, in MAJOR.MINOR.PATCH (semantic versioning) format. Helps consuming
      software determine whether the data format is supported. Objects lacking this
      property are assumed to conform to ATT&CK spec version 2.0.0. Refer to the ATT&CK
      CHANGELOG for all supported versions.
    comments:
    - 'absent_on: marking-definition, identity (x_mitre_version absent), relationship
      (x_mitre_version absent)'
    in_subset:
    - attack_sdos
    - attack_sros
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_attack_spec_version
    owner: Collection
    domain_of:
    - AttackObject
    range: semver_string
    required: true
  x_mitre_version:
    name: x_mitre_version
    description: 'The version of this ATT&CK object content in ''major.minor'' format,
      where both components are integers between 0 and 99. Incremented by ATT&CK whenever
      the substantive content of the object changes. Does not apply to relationship
      objects. Example: "1.0", "12.5".'
    comments:
    - 'absent_on: relationship, marking-definition'
    in_subset:
    - attack_sdos
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_version
    owner: Collection
    domain_of:
    - AttackObject
    range: attack_version_string
    required: true
  x_mitre_deprecated:
    name: x_mitre_deprecated
    description: Boolean flag indicating that this ATT&CK object has been deprecated
      and should no longer be used in new analyses or tooling implementations. Deprecated
      objects are retained in the knowledge base for historical reference and legacy
      compatibility, but are not actively maintained with new information.
    comments:
    - 'absent_on: marking-definition'
    in_subset:
    - attack_sdos
    - attack_sros
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_deprecated
    owner: Collection
    domain_of:
    - AttackObject
    range: boolean
  x_mitre_old_attack_id:
    name: x_mitre_old_attack_id
    description: A legacy ATT&CK ID previously assigned to this object before a knowledge
      base restructuring or domain migration event. Format mirrors the current ATT&CK
      ID format but from the prior numbering scheme (e.g., "MOB-T1001" for a mobile
      technique previously in the pre-unification Mobile ATT&CK dataset).
    in_subset:
    - attack_sdos
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_old_attack_id
    owner: Collection
    domain_of:
    - AttackObject
    range: string
  type:
    name: type
    description: STIX object type.
    from_schema: https://w3id.org/lmodel/attack
    related_mappings:
    - unified_cyber_ontology:state
    rank: 1000
    alias: type
    owner: Collection
    domain_of:
    - StixEntity
    - Bundle
    - Core
    - CyberObservableCore
    - ExtensionDefinition
    - LanguageContent
    - MarkingDefinition
    - File
    range: stix_type_name
    required: true
    pattern: ^x-mitre-collection$
  spec_version:
    name: spec_version
    description: STIX specification version.
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:specVersion
    rank: 1000
    alias: spec_version
    owner: Collection
    domain_of:
    - Core
    - CyberObservableCore
    - MarkingDefinition
    range: SpecVersionEnum
    required: true
  id:
    name: id
    description: STIX object identifier.
    from_schema: https://w3id.org/lmodel/attack
    related_mappings:
    - unified_cyber_ontology:externalReference
    rank: 1000
    alias: id
    owner: Collection
    domain_of:
    - StixEntity
    - Bundle
    - Core
    - CyberObservableCore
    - ExtensionDefinition
    - LanguageContent
    - MarkingDefinition
    - File
    range: stix_identifier
    required: true
    pattern: ^x-mitre-collection--
  created:
    name: created
    description: Creation timestamp.
    notes:
    - STIX core timestamps require millisecond precision.
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:objectCreatedTime
    rank: 1000
    alias: created
    owner: Collection
    domain_of:
    - Core
    - MarkingDefinition
    range: datetime
    required: true
    pattern: T\d{2}:\d{2}:\d{2}\.\d{3,}Z$
  modified:
    name: modified
    description: Modification timestamp.
    notes:
    - STIX core timestamps require millisecond precision.
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:modifiedTime
    rank: 1000
    alias: modified
    owner: Collection
    domain_of:
    - Core
    range: datetime
    required: true
    pattern: T\d{2}:\d{2}:\d{2}\.\d{3,}Z$
  created_by_ref:
    name: created_by_ref
    description: The STIX ID of the identity object that first created this ATT&CK
      object. Typically references MITRE's identity (identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5).
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:createdBy
    rank: 1000
    alias: created_by_ref
    owner: Collection
    domain_of:
    - Core
    - MarkingDefinition
    range: stix_identifier
    required: true
  labels:
    name: labels
    description: Terms used to describe this object.
    comments:
    - 'jsonschema_minItems: "1"'
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:tag
    rank: 1000
    alias: labels
    owner: Collection
    domain_of:
    - Core
    range: string
    multivalued: true
  revoked:
    name: revoked
    description: Indicates whether this object has been revoked.
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: revoked
    owner: Collection
    domain_of:
    - Core
    range: boolean
  confidence:
    name: confidence
    description: Confidence that the producer has in this data.
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: confidence
    owner: Collection
    domain_of:
    - Core
    range: integer
    minimum_value: 0
    maximum_value: 100
  lang:
    name: lang
    description: Language of textual properties.
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: lang
    owner: Collection
    domain_of:
    - Core
    - GranularMarking
    range: string
  external_references:
    name: external_references
    description: External references to non-STIX information.
    comments:
    - 'jsonschema_minItems: "1"'
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:externalReference
    rank: 1000
    alias: external_references
    owner: Collection
    domain_of:
    - Core
    - MarkingDefinition
    range: ExternalReference
    multivalued: true
  object_marking_refs:
    name: object_marking_refs
    description: Marking definition references applied to this object.
    comments:
    - 'jsonschema_minItems: "1"'
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:objectMarking
    rank: 1000
    alias: object_marking_refs
    owner: Collection
    domain_of:
    - Core
    - CyberObservableCore
    - MarkingDefinition
    range: stix_identifier
    required: true
    multivalued: true
  granular_markings:
    name: granular_markings
    description: Granular markings that apply to selected content.
    comments:
    - 'jsonschema_minItems: "1"'
    from_schema: https://w3id.org/lmodel/attack
    narrow_mappings:
    - unified_cyber_ontology:objectMarking
    rank: 1000
    alias: granular_markings
    owner: Collection
    domain_of:
    - Core
    - CyberObservableCore
    - MarkingDefinition
    range: GranularMarking
    multivalued: true
  extensions:
    name: extensions
    description: Open-ended extension payloads.
    notes:
    - JSON Schema uses patternProperties for extension keys; exact key validation
      is delegated to validator tooling.
    comments:
    - 'jsonschema_rule: patternProperties validator_hint: validate-extension-keys-and-values'
    from_schema: https://w3id.org/lmodel/attack
    related_mappings:
    - unified_cyber_ontology:hasFacet
    rank: 1000
    alias: extensions
    owner: Collection
    domain_of:
    - Core
    - CyberObservableCore
    - MarkingDefinition
    - File
    range: string
    multivalued: true
  name:
    name: name
    description: The name of this collection (e.g., 'Enterprise ATT&CK', 'ATT&CK for
      ICS v14.1').
    from_schema: https://w3id.org/lmodel/attack
    exact_mappings:
    - unified_cyber_ontology:name
    rank: 1000
    alias: name
    owner: Collection
    domain_of:
    - RelatedAsset
    - StixEntity
    - ExtensionDefinition
    - MarkingDefinition
    - AutonomousSystem
    - File
    range: string
    required: true
  description:
    name: description
    description: Details, context, and explanation about the purpose, scope, or version
      of the objects contained in this collection.
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:description
    rank: 1000
    alias: description
    owner: Collection
    domain_of:
    - RelatedAsset
    - MutableElement
    - StixEntity
    - ExtensionDefinition
    - ExternalReference
    range: string
    required: true