Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eadc8e9f0044520…

MALICIOUS

PDF

41.6 KB Created: 2020-11-20 09:32:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d7eee681d3fa9dc2f1d8134e9d68227 SHA-1: 3ed4fd40218999dcb1fd9ee95aeba191567ef412 SHA-256: 3eadc8e9f004452013dc3c4c6364a819aa2ef23c605b6c786467addfd798bf4f
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document identified as malicious by multiple heuristics and a machine learning classifier. It contains an embedded URI pointing to 'trafffe.ru', which is likely part of a phishing attempt related to tax returns. No scripts were extracted, but the PDF structure and URI suggest a social engineering lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7239

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 https://trafffe.ru/aws?utm_term=amended+tax+return+form+status
    • https://cdn-cms.f-static.net/uploads/4422377/normal_5f9c17ab7807f.pdf
    • https://cdn-cms.f-static.net/uploads/4389809/normal_5f9af637bae6c.pdf

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