The Cobalt Strike Beacon is a malicious implant on a compromised system that calls back to the attacker and checks for additional commands to execute on the compromised system.ĬISA and FBI are distributing this MAR, which includes tactics, techniques, and procedures associated with this activity, to enable network defense and reduce exposure to this malicious activity. The two Cobalt Strike Beacon loaders contain the same encoded configuration data.
Cobalt strike pdf#
The remaining file is corrupt and fails to extract PDF and LNK files. Two of the ISO files submitted to CISA contain a dynamic-link library that is a custom Cobalt Strike Beacon loader, a Portable Document Format (PDF) file, which is displayed to the target as a decoy document, and a Microsoft shortcut that executes the Cobalt Strike beacon. Government organization and distribute links to malicious URLs. These malicious files are associated with a spearphishing campaign targeting government organizations, intergovernmental organizations, and non-governmental organizations using Constant Contact to spoof a U.S. This Malware Analysis Report (MAR) is the result of analytic efforts by the Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI) to provide detailed analysis of three malicious ISO (optical disc image) files submitted to CISA.
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