Malicious PDF — malware analysis report

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://ggtraff.ru/123?keyword=analytic+geometry+conics+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366362/normal_5f889ef83abbb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366984/normal_5f888804a776f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365591/normal_5f86f8555cbbf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365552/normal_5f8740a47089b.pdfIn PDF document text
  • https://fidegobopoj.weebly.com/uploads/1/3/2/8/132815019/newukaf.pdfIn PDF document text
  • https://ranerenonosojib.weebly.com/uploads/1/3/1/4/131483420/bf02d1155708.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366306/normal_5f871952e01b0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f8a1d22d4235.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000098ca.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000098ca.bin)
  • https://uploads.strikinglycdn.com/files/6be399ee-be4f-44c0-b7a8-556c26e12721/45057731027.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2138b084-db9a-4bb1-9527-18098fb12bb5/84953727421.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/798df269-ab3c-49fd-b6da-d2581969a2fc/90141882757.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/6181/9584/files/pantun_romantis_untuk_mengucapkan_selamat_malam.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7352/8502/files/true_metrix_pro_glucose_meter_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f057a663-e835-4cf1-8566-96d7ca94c95e/kubimogupozuj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c55ce58a-5237-49c0-b7ff-e402601eff2f/97576481964.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 extracted file (font_00_sfnt_off000098ca.bin)

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