Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. technique: T1204 ✕

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  • Email contains URL delivering high-risk file type Informational Email 1 variation

    Emails with URLs linking to file types commonly blocked by email vendors due to their use in malware delivery.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Hour 30 Minutes
    ATT&CK tactics: Execution (TA0002) Credential Access (TA0006)
    ATT&CK techniques: User Execution (T1204) Brute Force: Password Cracking (T1110.002)
    Required data: Microsoft 365 Emails
    Detector tags: Malicious URLs
    Attacker's goals: To bypass attachment-based blocking by delivering malware or exploiting payloads via URLs pointing to file types commonly blocked by email vendors.
    Investigative actions: Review the URLs and determine if they host executable or script-based content. Check threat intelligence sources for reputation or known associations with malware. Investigate whether any users clicked the URL or downloaded the file. Analyze the file content using sandbox or static analysis tools.

    Variations

    External email with URL delivers blocked file types

    Low overridden

    Emails with URLs linking to file types commonly blocked by email vendors due to their use in malware delivery. overridden