Unusual cloud identity impersonation

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	5 Days
Required Data	Requires one of the following data sources: AWS Audit Log OR Gcp Audit Log
Detection Modules	Cloud
ATT&CK Tactic	Privilege Escalation (TA0004), Stealth (TA0005), Initial Access (TA0001)
ATT&CK Technique	Valid Accounts: Cloud Accounts (T1078.004), Abuse Elevation Control Mechanism: Temporary Elevated Cloud Access (T1548.005), Trusted Relationship (T1199)
Severity	Informational

Description

A cloud identity attempted to impersonate another identity for the first time.

Attacker's Goals

• Escalate privileges and bypass access controls
• Avoid detection throughout their compromise.

Investigative actions

• Check the identity's designation.
• Verify that the identity did not perform any sensitive operation on behalf of the impersonated identity.

Variations

Unusual cloud identity impersonation of a management role

Synopsis

Field	Value
ATT&CK Tactic	Privilege Escalation (TA0004), Stealth (TA0005), Initial Access (TA0001)
ATT&CK Technique	Valid Accounts: Cloud Accounts (T1078.004), Abuse Elevation Control Mechanism: Temporary Elevated Cloud Access (T1548.005), Trusted Relationship (T1199)
Severity	Informational

Description

A cloud identity attempted to impersonate a management role for the first time.

Attacker's Goals

• Escalate privileges and bypass access controls
• Avoid detection throughout their compromise.

Investigative actions

• Check the identity's designation.
• Verify that the identity did not perform any sensitive operation on behalf of the impersonated identity.

Suspicious cloud identity impersonation was succeeded

Synopsis

Field	Value
ATT&CK Tactic	Privilege Escalation (TA0004), Stealth (TA0005), Initial Access (TA0001)
ATT&CK Technique	Valid Accounts: Cloud Accounts (T1078.004), Abuse Elevation Control Mechanism: Temporary Elevated Cloud Access (T1548.005), Trusted Relationship (T1199)
Severity	Medium

Description

A cloud identity has impersonated another identity for the first time.

Attacker's Goals

• Escalate privileges and bypass access controls
• Avoid detection throughout their compromise.

Investigative actions

• Check the identity's designation.
• Verify that the identity did not perform any sensitive operation on behalf of the impersonated identity.

Suspicious cloud identity impersonation was failed

Synopsis

Field	Value
ATT&CK Tactic	Privilege Escalation (TA0004), Stealth (TA0005), Initial Access (TA0001)
ATT&CK Technique	Valid Accounts: Cloud Accounts (T1078.004), Abuse Elevation Control Mechanism: Temporary Elevated Cloud Access (T1548.005), Trusted Relationship (T1199)
Severity	Informational

Description

A cloud identity has failed to impersonate another identity.

Attacker's Goals

• Escalate privileges and bypass access controls
• Avoid detection throughout their compromise.

Investigative actions

• Check the identity's designation.
• Verify that the identity did not perform any sensitive operation on behalf of the impersonated identity.