Malicious PDF — malware analysis report

Static analysis result for SHA-256 266caf24c6426cb4…

MALICIOUS

PDF

56.4 KB First seen: 2026-05-04
MD5: c79e8b4bddf261c4036ba4cf174a8db4 SHA-1: fed8594ad927cbe8ed7e3bf35f9049089bb5f552 SHA-256: 266caf24c6426cb4964f009bea519dc8ea4534298f285dc65a0c7124a186cb88
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic indicating it impersonates a cloud document lure, directing the user to an external URL. The ClamAV detection confirms its malicious nature as a dropper. The embedded URL, https://felixplanet.com/plug/files/index.php, is likely the next stage of the attack, designed to download and execute further malicious content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0020

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7240911-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7240911-0
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://felixplanet.com/plug/files/index.php PDF link annotation