Malicious PDF — malware analysis report

Static analysis result for SHA-256 07935a9bd8a6bce7…

MALICIOUS

PDF

361.5 KB Created: 2015-11-06 11:16:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 3a896aed920dd35815c2dc49d64923bf SHA-1: af75686b08a497041641067ead157c3d8cb3a34b SHA-256: 07935a9bd8a6bce7eaada737e20fa8da874da08d80bf6440cd087acba97e5276
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains an embedded URI that redirects to a suspicious domain, identified as a potential SEO redirector for phishing or malware distribution. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the presence of a malicious redirector suggests an attempt to lure the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%BA%D0%BD%D0%B8%D0%B3%D1%83+%D1%82%D0%B8%D0%BC%D0%B0+%D1%80%D0%B8%D1%87%D0%B0%D1%80%D0%B4%D1%81%D0%BE%D0%BD%D0%B0+%D1%81%D0%B5%D0%BA%D1%80%D0%B5%D1%82%D1%8B+%D0%BA%D0%B0%D1%80%D0%BF%D0%BE%D0%B2%D1%8B%D1%85+%D0%BF%D1%80%D0%B8%D0%BC%D0%B0%D0%BD%D0%BE%D0%BA&charset=utf-8 PDF link annotation
    • http://taurus-tg.ru/?nnr&keyword=%D0%BA%D0%BD%D0%B8%D0%B3%D1%83+%D1%82%D0%B8%D0%BC%D0%B0+%D1%80%D0%B8%D1%87%D0%B0%D1%80%D0%B4%D1%81%D0%BE%D0%BD%D0%B0+%D1%81%D0%B5%D0%BA%D1%80%D0%B5%D1%82%D1%8B+%D0%BA%D0%B0%D1%80%D0%BF%D0%BE%D0%B2%D1%8B%D1%85+%D0%BF%D1%80%D0%B8%D0%BC%D0%B0%D0%BD%D0%BE%D0%BA&charset=uPDF link annotation
    • http://media.nn.ru/data/ufiles/2015-11/99/57/07/563c4ed2bbcb4_starlight10workbookskachat.pdfIn PDF document text
    • http://media.nn.ru/data/ufiles/2015-11/dd/3d/98/563c5d51df9fb_skairimrecastskachattorrent.pdfIn PDF document text
    • http://media.nn.ru/data/ufiles/2015-11/40/1f/a3/563c50b73b8a6_kheppivilsdliapk.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005610f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5610F 7588 bytes
SHA-256: 005711991613d58362c91bf3355d745c0faf1f954bfa4923c6d765e92e42d472
font_01_sfnt_off0005779e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5779E 15152 bytes
SHA-256: cdfd7e8bc1ca3c14205a07edaa479b0575ba538cb351d249011c9e754bb96f85

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