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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=converter+pdf+em+png+ou+jpg+online In PDF document text

  • http://files.johnson-family-chiropractic.com/uploads/1/3/0/7/130739782/gexotafa.pdfIn PDF document text
  • http://selafef.pittsburghaiha.org/uploads/1/3/0/7/130739906/8f5e9c4e68f91.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/1/0482/0887/1576/files/52879241413.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/0670/5316/files/31058244877.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/beast_tv_reviews_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/2888/8217/files/percent_error_practice_problems_worksheet_answer_key.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/4040/7701/files/adt_vista_20p_programming_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8389/0850/files/aashto_guide_design_for_bridge_temporary_works.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9137/1202/files/barrons_regents_exams_and_answers_biology_the_living_environment.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/inuyasha_episode_1_english_dub.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/9934/8885/files/my_summer_car_wiring_mess_negative.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2be9e8b8-53da-49af-8e15-b5154da19a99/64593361877.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f84323be-b19a-4e96-ba43-913db72d4378/88736519273.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f27223a5-9fe3-4c9f-93c0-10498cfc7688/wizijagifob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/62e7a8ef-8db7-490a-a444-89f5b9bb7103/gesimofuzusagafopexor.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ced986f8-b02d-4f74-aeb3-ab2ec57e2f3c/repinejukofoxubagu.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

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