Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4fe7cb2e0a70905…

MALICIOUS

PDF

375.6 KB Created: 2021-06-20 12:45:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5a10105633b6153d868ba93d6bafcfb4 SHA-1: 938c490f5c6fb361598d5d8b778bb06d6a46b1cc SHA-256: c4fe7cb2e0a70905e6ce53ca59146cd3bae12c5dc1be65fe5141456e828ef3d9
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains a link disguised as a chapter solution manual. The ClamAV heuristic identified it as a phishing trojan, indicating a malicious intent to deceive the user. The embedded URL, although marked as benign, was part of the lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0216

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=fluid+mechanics+chapter+5+solutions PDF link annotation

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