Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3df49624ffd9d91…

MALICIOUS

PDF

67.6 KB Created: 2021-03-19 09:12:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0645773d395e116f27af2046bd8151e4 SHA-1: 2399a3c4659dd5a8aa928d9d3658962774365b37 SHA-256: b3df49624ffd9d91e494ed05c97d2090f3b8e32ac0501b89b46aec480abc732d
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing attacks. It contains an embedded URL that leads to a suspicious domain. ClamAV and ML classifiers also flagged this file as malicious, suggesting it's part of a phishing campaign or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6905

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://druttle.ru/aws?utm_term=the+tale+of+the+dueling+neurosurgeons+rebus+answers

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