Malicious PDF — malware analysis report

Static analysis result for SHA-256 7862523250867ecc…

MALICIOUS

PDF

348.0 KB Created: 2015-11-06 23:15:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: dec61c694defcb1e0e4461be695bc0e4 SHA-1: f74bce4cab872dbc98bf58d7d41262a755f95bc6 SHA-256: 7862523250867ecca4b2dad156398dd1d98451c12277041e7dac51e98ce712a5
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a heuristic indicating an image lure linking to an SEO redirector, suggesting a phishing or scam attempt. The embedded URL points to 'taurus-tg.ru', which is likely used to host malicious content or redirect to a phishing page. No scripts were extracted, but the PDF structure and URL are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

Heuristics 3

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 http://taurus-tg.ru/?nnr&keyword=%D0%A2%D0%B5%D1%81%D1%82%D1%8B+%D0%BF%D0%BE+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D1%82%D0%B5%D1%85%D0%BD%D0%B8%D0%BA%D0%B5+%D0%B8+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B8%D0%BA%D0%B5+%D1%81+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D0%B0%D0%BC%D0%B8&charset=utf-8 PDF link annotation
    • http://taurus-tg.ru/?nnr&keyword=%D0%A2%D0%B5%D1%81%D1%82%D1%8B+%D0%BF%D0%BE+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D1%82%D0%B5%D1%85%D0%BD%D0%B8%D0%BA%D0%B5+%D0%B8+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BD%D0%B8%D0%BA%D0%B5+%D1%81+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D0%B0%D0%BC%D0%B8&charset=PDF link annotation
    • http://media.nn.ru/data/ufiles/2015-11/63/e4/10/563cae407c50f_vseformulyza10klasspofizike.pdfIn PDF document text
    • http://media.nn.ru/data/ufiles/2015-11/c7/95/9a/563c91e205482_pornonatelefonvformatemp4.pdfIn PDF document text
    • http://media.nn.ru/data/ufiles/2015-11/16/54/7e/563c853780df2_vedmachilegendyskachatknigu.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052c17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52C17 7712 bytes
SHA-256: aa07b7d45430bb51160901e9dd5529431a4a484b253528dbad1724cc235c60ca
font_01_sfnt_off000542c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x542C4 14280 bytes
SHA-256: efc9da302484d46f1e44b68783e170f8b5bd9248d907fd900b8c008fb540a109

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