Malicious PDF — malware analysis report

Static analysis result for SHA-256 019f6592f1dc07e9…

MALICIOUS

PDF

64.0 KB Created: 2021-03-16 22:32:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49120a26fed750a97a61328d276ea4cf SHA-1: af0d8509d3bd80c7ec462f21e1f9004f38eb5fc2 SHA-256: 019f6592f1dc07e9541276cfa52535ef36ddc9be792aebe268279078bee69211
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which are generated for SEO purposes, suggesting a link farm or spamming operation. The primary URL, 'https://dugedepap.ru/award?keyword=arabian+nights+pdf+piano', is suspicious and likely leads to malicious content or phishing. ClamAV also detected this file as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5526

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://dugedepap.ru/award?keyword=arabian+nights+pdf+piano
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    • https://uploads.strikinglycdn.com/files/66b85933-344b-4d3a-8196-cf6cd09a0758/mastering_modern_calligraphy_by_molly_suber_thorpe.pdf
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    • http://bejanifezilo.atwebpages.com/19731833495.pdf
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