Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ea30c869233c23a…

MALICIOUS

PDF

44.8 KB Created: 2020-07-28 21:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c50c87ae5ea243976f1a1daaa54f639a SHA-1: 528c4439e75e84516e4b37cb19f3ca88086ffa06 SHA-256: 0ea30c869233c23a3bd2282620ff414e2b04161f76fdfe0415ef06eca6d7f36b
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation, likely to distribute malware or phish for credentials. The primary malicious URL identified is https://ttraff.ru/pify?keyword=kyocera+duraxv+guide, which is used in conjunction with numerous other PDF links pointing to benign Shopify domains and other unknown domains. The ML classifier strongly supports the malicious verdict.

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=kyocera+duraxv+guide In PDF document text
    • http://files.teriannestanley.com/uploads/1/3/1/8/131856539/gutijimojitesuvofosa.pdfIn PDF document text
    • http://files.seafom-friendsofmontessori.org/uploads/1/3/1/3/131379375/tatobuj-ranazulov.pdfIn PDF document text
    • http://files.glendalelocalhistory.org/uploads/1/3/1/4/131406105/b7f27.pdfIn PDF document text
    • http://files.forestvilleanglican.com/uploads/1/3/1/3/131381540/difajutuku-wuredarofewes-jusuf.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/1/0434/5203/9328/files/nufevumuturivol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/51194222333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/4854767574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37263727017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/42542376834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/dilurasup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jamitaribigonekadori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6077/2510/files/69804372433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/94346772807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1221/7241/files/85479766558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0569/7440/files/17998935925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3606/3397/files/govosumejupumalukadipegew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6379/5096/files/70748938467.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 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_off000073d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D6 4792 bytes
SHA-256: 3fd8950e6a45212c1397dd514781ebe7a8636394dccecd7d64e4873c5d7fa8e3
font_01_sfnt_off00008440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8440 10100 bytes
SHA-256: 9c532718f84f2a3a718a59c504fba41d6f1beddb6c43e0679d5dc3f923fa6bd8

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