Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f5bbac61a376ce7…

MALICIOUS

PDF

39.4 KB Created: 2021-02-27 00:53:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b9b0759d153e9dab5b54294e6bda3c83 SHA-1: f5f9ca5ade98055961b50479a877e750618fd75c SHA-256: 4f5bbac61a376ce7bb45dcfaf6089aa32282f7f740592a9ca538da7fc4cb0611
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF containing an embedded URL that points to a suspicious domain. Heuristic analysis and a machine learning classifier flagged the PDF as malicious, with ClamAV identifying it as a phishing trojan. The document body, though heavily obfuscated, appears to contain metadata related to the URL's content, suggesting a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5431

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://xajibur.ru/award?keyword=how+to+prove+fraternization+in+the+army PDF link annotation

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