T1598.003sub-technique of T1598 Phishing for Information
Spearphishing Link
PREnothing on this site yetT1598.003 on attack.mitre.org
Adversaries may send spearphishing messages with a malicious link to elicit sensitive information that can be used during targeting. Spearphishing for information is an attempt to trick targets into divulging information, frequently credentials or other actionable information.
how MITRE says to see it
Detection of Spearphishing Link
- 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. Monitor for references to uncategorized or known-bad sites.
what reduces it
- M1017 User Training. Users can be trained to identify social engineering techniques and spearphishing attempts. Additionally, users may perform visual checks of the domains they visit; however, homographs in ASCII and in IDN domains and URL schema obfuscation may render manual checks difficult. Phishing training and other cybersecurity training may raise awareness to check URLs before visiting the sites.
- M1054 Software Configuration. Use anti-spoofing and email authentication mechanisms to filter messages based on validity checks of the sender domain (using SPF) and integrity of messages (using DKIM). Enabling these mechanisms within an organization (through policies such as DMARC) may enable recipients (intra-org and cross domain) to perform similar message filtering and validation.