EMAIL BETA - Rarely seen URL(s) within a well-known domain detected in your organization's email

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2025-04-21
Category
Analytics Alert Reference
Index by
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Day

Required Data

  • Requires:
    • Microsoft 365 Emails

Detection Modules

Email

Detector Tags

ATT&CK Tactic

Initial Access (TA0001)

ATT&CK Technique

Phishing (T1566)

Severity

Informational

Description

We have identified unpopular URL(s) within this email.

Attacker's Goals

Trick the user into engaging with a URL(s), aiming to extract information/establish access to the network.

Investigative actions

  • Examine the sender's IP address and reputation.
  • Verify whether the sender's IP address has appeared in different log sources before, and if it is recognizable.
  • If the message contains attachments/links, scrutinize them for any suspicious indications.
  • Monitor further actions taken, such as file downloads or access to potentially malicious links.