Operation Capsule Vault: RokRAT Attack Chain Analysis Using EMBED_PAYLOAD_v2

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Operation Capsule Vault: RokRAT Attack Chain Analysis Using EMBED_PAYLOAD_v2

◈ Key Findings

  • Initial access was carried out through spear-phishing emails disguised as materials for actual academic events and seminars.
  • Although the file was disguised as a PDF, it actually delivered a malicious ISO file through a cloud storage link.
  • The ISO contained an executable disguised as a PDF document, using the ".pdf", ".pif" extension to induce the user to run it.
  • The attack loaded the shellcode payload into memory and injected a RokRAT variant into a process.
  • EDR and threat hunting policies should be strengthened to detect correlated ISO and PIF execution behaviors.

 

Article Link: Operation Capsule Vault: RokRAT Attack Chain Analysis Using EMBED_PAYLOAD_v2