Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c10f474bb8fbfbf…

MALICIOUS

PDF

40.8 KB Created: 2020-08-09 03:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 433ae62c7731a10eb234a044a2082862 SHA-1: 3512d59827b64a0f46fc6c29162c6a5e9fb7604d SHA-256: 0c10f474bb8fbfbf36eb1d619587647fefcd10ffe9847641764f503d1910cc26
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=download+brisingr+pdf+ita'. The document also exhibits characteristics of an SEO link farm, with numerous links to other PDFs hosted on various domains, suggesting a campaign to generate traffic or distribute further malicious content. The ML classifier strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.ru/pify?keyword=download+brisingr+pdf+ita In PDF document text
    • http://files.homesawayfromhome.ca/uploads/1/3/1/3/131383424/7544674.pdfIn PDF document text
    • http://files.bsklartherapy.com/uploads/1/3/0/9/130968933/251dc0.pdfIn PDF document text
    • http://files.sisterstylebydesign.com/uploads/1/3/0/8/130874316/pusore_jupamoduzavox_nobakog_vejase.pdfIn PDF document text
    • http://maxokuzuw.prhsboyssoccer.com/uploads/1/3/1/6/131607600/3393314.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8534/0580/files/50_best_logos_ever.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/mafunisotawade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0465/6797/files/zitakuwonitonajipuxav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4939/2030/files/wutamumupekoberu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7313/2957/files/convert_string_to_int_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9252/3675/files/49658213198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2893/7880/files/taliwetivebuvegatuzoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0819/5738/files/how_to_install_pyserial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/musub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0384/4520/files/xubew.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

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_off0000602a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602A 5440 bytes
SHA-256: 6d124c1df6b786283cccffa0e1444995396f30237e62876f5167358458582e47
font_01_sfnt_off000072ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72CA 10492 bytes
SHA-256: a6a7ee9486e58f2cebb05169fc6b9db9fb2d13832d79855b368ead825738fee2

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