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Targeted Attack Delivers Crimson RAT

ID: 265cc0a7-d9ec-528b-87d8-83b77905dda8

STIX ID: report--265cc0a7-d9ec-528b-87d8-83b77905dda8

Feed Name: Zscaler Security Research Blog

Threat Score
75/100

Date Published: 2025-04-02

Date Updated: 2026-05-01

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Zscaler documents two targeted spear-phishing campaigns that deliver Crimson RAT to victims via either a malicious PE with embedded ZIPs or a DOC file with macros; upon execution the RAT performs data exfiltration, screenshots, process control, keylogging and credential theft, connecting to a hardcoded C2 (181.215.47.169) across multiple ports. The report includes command mappings, C2 protocol details, comprehensive IOCs (URLs, IP:port combinations, and multiple file hashes), and notes that Zscaler Cloud Sandbox and Cloud IPS provide detection coverage.

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