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TA571

TA571 is a threat actor group, tracked by Brandefense.

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Techniques
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Exploited CVEs
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Record updated

About TA571.

TA571 is a spam distributor actor known for delivering a variety of malware, including DarkGate, NetSupport RAT, and information stealers. They use phishing emails with macro-enabled attachments to spread malicious PDFs containing rogue OneDrive links. TA571 has been observed using unique filtering techniques with intermediary "gates" to target specific users and bypass automated sandboxing.

Last updated Oct 9, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.