Malicious PDF — malware analysis report

Static analysis result for SHA-256 65bdd9060a161f05…

MALICIOUS

PDF

66.8 KB Created: 2021-03-26 09:31:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ec73df28c94ef8401c19e2eeeb41b93 SHA-1: 2cb731c565cb4d39bb37046b1e4aa639a90571b6 SHA-256: 65bdd9060a161f05d5a1da30c0e764afda270aa70ff9644e93f65d938333fece
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, characteristic of a link farm or phishing campaign. The ClamAV detection and ML classifier also indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external links suggest it is designed to redirect users to potentially malicious websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5221

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-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://baarspo.ru/award?keyword=concierto+de+aranjuez+trumpet+solo+pdf
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