Malicious PDF — malware analysis report

Heuristics 6

• 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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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://gettraff.ru/wb?keyword=formula%20de%20presion%20arterial%20media%20pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375358/normal_5f90ae9359c92.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369793/normal_5f8f088f5067d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369922/normal_5f8b9b78d773f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367005/normal_5f873e1a20d8a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365662/normal_5f905b8ef0d88.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/56658108869.pdfIn PDF document text
  • https://s3.amazonaws.com/fedufiporara/abituriyent_jurnali_2019_indir.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367938/normal_5f88baef2131d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402247/normal_5f91eff63df25.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385422/normal_5f917aa658aaa.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004d50.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004d50.bin)
  • http://www.daltonmaag.com/In extracted file (font_03_sfnt_off000097f4.bin)
  • https://cdn.shopify.com/s/files/1/0486/5071/5294/files/brainpop_current_electricity_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/2758/3135/files/55658328515.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/1214/5830/files/biwufuguvitewutav.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/7952/7321/files/android_mobiles_under_7000.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8b8674b8-44a4-4099-a3ba-4ffbf0ba726a/15507142515.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/17d6289e-2990-4eb6-a48e-b849188bb7c9/36754418926.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/123f6ee9-d357-4d47-bf8f-3062e462bd0e/pokemon_heart_gold_randomizer_nuzloc.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f82cd951-befc-4f0b-a4df-ce859349a701/lasiruletovakajidurux.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_off00004d50.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off000082e8.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off000082e8.bin)

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