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/wb?keyword=depressive%20disorder%20treatment%20pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4373502/normal_5f8bfb4dcaddc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393514/normal_5f91b11c5141d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370064/normal_5f8ae8dd36593.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/azo_dyes_used_in_textile_industries.pdfIn PDF document text
  • https://s3.amazonaws.com/zedilegol/austere_academy.pdfIn PDF document text
  • https://s3.amazonaws.com/sepawi/jeliviwixabifokatukor.pdfIn PDF document text
  • https://s3.amazonaws.com/bulolimepol/caballo_de_troya_saga_completa_descargar_gratis_mega.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008190.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008190.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000b6f7.bin)
  • https://uploads.strikinglycdn.com/files/d68f0360-807b-4457-86db-09e33c29e90c/dufenixelix.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dc382a26-33a7-42e7-8915-437f5127545a/76219597164.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/215c9e4d-b4e1-4ecb-a08a-9a5523cd6c74/10282604405.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e9ac434b-e8e4-4b0e-8c29-27e96d047c23/sport_and_exercise_psychology_degree.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3192a4f5-2678-436d-ad8b-8baa80d7af36/wavikedovoxenadop.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9d05272b-f990-4461-9a84-6fb410be49c7/87204807368.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/703ed50d-ea4f-4e2c-994d-c2e489f74cd3/38365601649.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/867e59a4-0177-4814-963d-64678457dc21/48431416371.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9fc71e70-63c2-483d-b36c-7c66c3aecc10/zabiberajulodinib.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/952ce029-0bbb-4e36-b6eb-57d6009de134/natovejowonezuwif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f8e12a52-3f26-41bc-bd55-133fb40b54fd/siem_family_norway.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/96cc6ee1-9c5d-4539-bdd8-1ade0b6b343f/50_shades_darker_online.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/2154/9735/files/37427434843.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6151/6737/files/vipoj.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7125/8278/files/luguful.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/8304/5293/files/warship_battle_joycity_mod_apk.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_off00008190.bin)

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