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://cctraff.ru/strik?keyword=whirlpool+4.3+cu+ft+compact+refrigerator+manual In PDF document text

  • https://cdn-cms.f-static.net/uploads/4402504/normal_5f91e213440c8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369146/normal_5f952f974a042.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374953/normal_5f9133c8aa858.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366317/normal_5f8beb14cbbea.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006aa6.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006aa6.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00009fa2.bin)
  • https://cdn.shopify.com/s/files/1/0433/9462/9788/files/colonizer_and_colonized.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/2743/0059/files/the_one_thing_summary.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/4947/2159/files/elegant_yokai_apartment_life_characters.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/40b6d8b0-a205-4c25-be04-d22d4380e313/maplestory_2_rune_blader.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e53dfd3-f0d7-40e4-b4ec-738b27f7076c/romizumalabetumelefolin.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ecb1f2be-82c2-4670-a245-aa4fe365b85a/3081512370.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/momotaro_story.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/25738617898.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/8834710257.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b6bc503d-7d4c-4426-87cd-cfc12829f83e/josajiteruk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ee39dd8f-00ed-4cf9-a24c-7cf24432146d/55272783555.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3a53a1e0-86c8-4e41-8b32-999ad296ca02/aumentativos_y_diminutivos_ejemplos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e38e81cc-f257-432a-bb3e-bf077ac5a8ea/sipanotinepabaked.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4db214ca-f9c7-4956-bec3-cb6954812320/tonunuwokabebu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/055834be-215e-4c27-b788-0df8ea922c50/battlestar_galactica_season_1_kickas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bacfe0b3-e055-41db-959a-6c4f9031d5bd/acan_8100_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f5ce463d-470b-40d1-a70c-0ab40de022fc/rewesorigunu.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_off00006aa6.bin)

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