TA0043 · RECONNAISSANCE
Spearphishing Link
Adversaries may send spearphishing messages with a malicious link to elicit sensitive information that can be used during targeting.
Detect it with
Monitor for suspicious email activity, such as numerous accounts receiving messages from a single unusual/unknown sender. Filtering based on DKIM+SPF or header analysis can help detect when the email sender is spoofed.
Why it matters on shift
Spearphishing Link is one of the concrete ways adversaries achieve reconnaissance. Recognising it in telemetry lets you name the technique in your ticket and pivot to what came before and after.
What to look for next
After reconnaissance, the next tactic is usually Resource Development. Search your telemetry for the transition before closing the ticket.
Kill-chain context