Malware Object

Malware is a type of TTP that is also known as malicious code and malicious software, and refers to a program that is inserted into a system, usually covertly, with the intent of compromising the confidentiality, integrity, or availability of the victim's data, applications, or operating system (OS) or of otherwise annoying or disrupting the victim. Malware such as viruses and worms are usually designed to perform these nefarious functions in such a way that users are unaware of them, at least initially.

Property	Type	Description	Required?
id	String	Globally unique URI identifying this object.	✓
labels	MalwareLabel String List	The type of malware being described.	✓
name	ShortString String	A name used to identify the Malware sample.	✓
schema_version	String	CTIM schema version for this entity	✓
type	MalwareTypeIdentifier String		✓
abstraction_level	MalwareAbstractions String	Malware abstraction level
description	Markdown String	A description that provides more details and context about the Malware, potentially including its purpose and its key characteristics.
external_ids	String List
external_references	ExternalReference Object List	Specifies a list of external references which refers to non-CTIM information. This property is used to provide one or more URLs, descriptions, or IDs to records in other systems.
kill_chain_phases	KillChainPhase Object List	The list of Kill Chain Phases for which this Malware can be used.
language	ShortString String	The human language this object is specified in.
revision	Integer	A monotonically increasing revision, incremented each time the object is changed.
source	MedString String
source_uri	String
timestamp	Inst (Date)	The time this object was created at, or last modified.
tlp	TLP String	Specification for how, and to whom, this object can be shared.
x_mitre_aliases	ShortString String List	ATT&CK Software.aliases

• Reference: Malware

Property abstraction_level ∷ MalwareAbstractions String

Malware abstraction level

• This entry is optional

  • Malware Abstraction level
  • Allowed Values:
    • family
    • variant
    • version

Property description ∷ Markdown String

A description that provides more details and context about the Malware, potentially including its purpose and its key characteristics.

• This entry is optional

  • Markdown string with at most 5000 characters

Property external_ids ∷ String List

• This entry is optional
• This entry's type is sequential (allows zero or more values)

Property external_references ∷ ExternalReference Object List

Specifies a list of external references which refers to non-CTIM information. This property is used to provide one or more URLs, descriptions, or IDs to records in other systems.

• This entry is optional
• This entry's type is sequential (allows zero or more values)

• ExternalReference Object Value
  • Details: ExternalReference Object

Property id ∷ String

Globally unique URI identifying this object.

• This entry is required

  • IDs are URIs, for example https://www.domain.com/ctia/judgement/judgement-de305d54-75b4-431b-adb2-eb6b9e546014 for a Judgement. This ID type compares to the STIX id field. The optional STIX idref field is not used.

Property kill_chain_phases ∷ KillChainPhase Object List

The list of Kill Chain Phases for which this Malware can be used.

• This entry is optional
• This entry's type is sequential (allows zero or more values)

• KillChainPhase Object Value
  • Details: KillChainPhase Object

Property labels ∷ MalwareLabel String List

The type of malware being described.

• This entry is required

• This entry's type is sequential (allows zero or more values)

  • Malware label is an open vocabulary that represents different types and functions of malware. Malware labels are not mutually exclusive; a malware instance can be both spyware and a screen capture tool.
  • Allowed Values:
    • adware
    • backdoor
    • bot
    • ddos
    • dropper
    • exploit-kit
    • keylogger
    • ransomware
    • remote-access-trojan
    • resource-exploitation
    • rogue-security-software
    • rootkit
    • screen-capture
    • spyware
    • trojan
    • virus
    • worm
  • Reference: Malware Label

Property language ∷ ShortString String

The human language this object is specified in.

• This entry is optional

  • String with at most 1024 characters

Property name ∷ ShortString String

A name used to identify the Malware sample.

• This entry is required

  • String with at most 1024 characters

Property revision ∷ Integer

A monotonically increasing revision, incremented each time the object is changed.

• This entry is optional

  • Zero, or a positive integer

Property schema_version ∷ String

CTIM schema version for this entity

• This entry is required

  • A semantic version matching the CTIM version against which this object should be valid.

Property source ∷ MedString String

• This entry is optional

  • String with at most 2048 characters

Property source_uri ∷ String

• This entry is optional

  • A URI

Property timestamp ∷ Inst (Date)

The time this object was created at, or last modified.

• This entry is optional

  • Schema definition for all date or timestamp values. Serialized as a string, the field should follow the rules of the ISO8601 standard.

Property tlp ∷ TLP String

Specification for how, and to whom, this object can be shared.

• This entry is optional

  • TLP stands for Traffic Light Protocol, which indicates precisely how this resource is intended to be shared, replicated, copied, etc.
  • Default: green
  • Allowed Values:
    • amber
    • green
    • red
    • white

Property type ∷ MalwareTypeIdentifier String

• This entry is required

  • Must equal: "malware"

Property x_mitre_aliases ∷ ShortString String List

ATT&CK Software.aliases

• This entry is optional

• This entry's type is sequential (allows zero or more values)

  • String with at most 1024 characters

ExternalReference Object

External references are used to describe pointers to information represented outside of CTIM. For example, a Malware object could use an external reference to indicate an ID for that malware in an external database or a report could use references to represent source material.

Property	Type	Description	Required?
source_name	MedString String	The source within which the external-reference is defined (system, registry, organization, etc.)	✓
description	Markdown String
external_id	String	An identifier for the external reference content.
hashes	String List	Specifies a dictionary of hashes for the contents of the url.
url	String	A URL reference to an external resource

• Reference: External Reference

Property description ∷ Markdown String

• This entry is optional

  • Markdown string with at most 5000 characters

Property external_id ∷ String

An identifier for the external reference content.

• This entry is optional

Property hashes ∷ String List

Specifies a dictionary of hashes for the contents of the url.

• This entry is optional
• This entry's type is sequential (allows zero or more values)

Property source_name ∷ MedString String

The source within which the external-reference is defined (system, registry, organization, etc.)

• This entry is required

  • String with at most 2048 characters

Property url ∷ String

A URL reference to an external resource

• This entry is optional

  • A URI

KillChainPhase Object

The kill-chain-phase represents a phase in a kill chain, which describes the various phases an attacker may undertake in order to achieve their objectives.

Property	Type	Description	Required?
kill_chain_name	String	The name of the kill chain.	✓
phase_name	String	The name of the phase in the kill chain.	✓

• Reference: Kill Chain Phase

Property kill_chain_name ∷ String

The name of the kill chain.

• This entry is required

  • SHOULD be all lowercase (where lowercase is defined by the locality conventions) and SHOULD use hyphens instead of spaces or underscores as word separators.
  • Must equal: "lockheed-martin-cyber-kill-chain"
  • Reference: Open Vocabulary

Property phase_name ∷ String

The name of the phase in the kill chain.

• This entry is required

  • SHOULD be all lowercase (where lowercase is defined by the locality conventions) and SHOULD use hyphens instead of spaces or underscores as word separators.
  • Allowed Values:
    • actions-on-objective
    • command-and-control
    • delivery
    • exploitation
    • installation
    • reconnaissance
    • weaponization
  • Reference: Open Vocabulary