Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5fb5e39e0e64c3b…

MALICIOUS

PDF

705.9 KB Created: 2021-03-15 13:14:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 9c409b139544ee027b58cb560fb21ef3 SHA-1: 23228c932abac6bf9c8aa2a0ed7c3678ba2ab246 SHA-256: a5fb5e39e0e64c3b31f2dbff0aa4b246c4b8fe9d7d9a54eaed08dab3e53ef224
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains an embedded URI pointing to a suspicious URL. ClamAV detection confirms this is a phishing-related trojan. The document body, though heavily obfuscated, appears to be a lure related to a book title, suggesting a phishing or social engineering attempt to drive traffic to the malicious URL.

Machine Learning

  • Nyx PDF Classifier clean score 0.0075

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://jottigo.ru/award?keyword=qu%25C3%25ADmica+inorg%25C3%25A1nica+descriptiva+geoff+rayner+canham+pdf PDF link annotation

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