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://gettraff.ru/wb?keyword=morphology%20francis%20katamba%20pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4405654/normal_5f92014bce883.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375890/normal_5f8fafa627eea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365562/normal_5f879e82ae367.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373239/normal_5f8922dc6330c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372384/normal_5f8898aa4483c.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/d74cf203-952a-49a1-9db1-b04052a4c4a8/murekibesudot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ffad39e-2c4a-4911-9854-5d151f7aa516/timerudukafejamoxalitu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fff15f6b-81cd-4af2-a61f-c1cf943a8a93/5243259289.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/558be10d-ef0c-4c7f-96ca-56ac49f79b68/79349431603.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/3879/1582/files/english_exercises_for_grade_4.pdfIn PDF document text
  • https://s3.amazonaws.com/fatikonavori/80598190410.pdfIn PDF document text
  • https://s3.amazonaws.com/dalava/eduardo_galeano_espejos.pdfIn PDF document text
  • https://s3.amazonaws.com/bagisi/advanced_mathematical_methods_in_science_and_engineering_hayek.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/04db65f9-92ad-4944-8f56-9a91b14c42ae/benesugeritu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/35dbb583-20f2-4bde-b2a9-0c9b1e1fdf4f/frozen_the_movie.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f02c078-0017-4c68-a09d-57837961c5ae/jegoxubugiludixilexukalu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/83f9f0a9-f0a3-4cf2-a8e4-99eb1e865533/98974480143.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/7888/4759/files/football_game_pes_2020_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/6996/7013/files/breast_screening_guidelines_us.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/2750/5567/files/pen_y_fan_map.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5007/3240/files/mini_militia_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 PDF document text

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