Malicious PDF — malware analysis report

Static analysis result for SHA-256 81680eaec169b227…

MALICIOUS

PDF

47.5 KB Created: 2021-04-07 10:59:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 40fa401b952cec56bc624d0636ef7bb8 SHA-1: a1baa16f45b9994957ba51f59b6a8b9a06bf1fda SHA-256: 81680eaec169b227ce771cfbc6ef2644fcf0ddfc779ea1ec920887064715eeb7
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains an embedded URI pointing to a URL that, while appearing benign, is part of a phishing lure. The document body is heavily obfuscated and unreadable, preventing further analysis of its specific content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5764

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 http://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=construction+cost+estimation+pdf PDF link annotation

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