Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc953479c09c7cf2…

MALICIOUS

PDF

35.6 KB Created: 2020-12-05 11:04:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c030bfbe583bc3d634c802da13db44f7 SHA-1: 909ef8209ab8d0d6647c51f95f42fde43d540739 SHA-256: fc953479c09c7cf20fee4ef5c1f2cfc1bbd996163b9b5bc59f583970fb0913bb
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and a single clickable action, typical of screenshot lures. It contains an embedded URL pointing to 'trafffe.ru', which is likely intended to redirect the user to a malicious site. ClamAV and ML classifiers also flagged this PDF as malicious, supporting the phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7075

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 35 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://trafffe.ru/aws?utm_term=direct+speech+into+reported+speech+worksheet

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