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://ttraff.link/pify?keyword=doen%25C3%25A7a+de+crohn+e+nutri%25C3%25A7%25C3%25A3o+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4383314/normal_5f8dece7b8cf3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379034/normal_5f91bca107483.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369762/normal_5f944340a6fda.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383567/normal_5f949718746e5.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/6cc1995e-4f3b-4299-b247-cdf2517e2a13/8851410182.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3781f1ab-f29a-4627-8095-380a5da3ed6f/80471776191.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c93836c8-c018-4e34-aae6-a24d89d64a29/vofigitixukepudo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eeff0d97-7fb9-407e-acaf-93c4b86917d0/delatogubarorilegodabuxen.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5104/1447/files/noxezujawejidiba.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/9462/0333/files/environmental_impact_of_meat_production.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/6482/5758/files/periodic_table_of_elements_with_names_and_symbols_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9189/3666/files/pause_ahead_unblocked.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/3252/5979/files/calculus_howard_anton.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/77d5872e-0703-4678-b723-16226623f06e/dujewuturasu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ea4efb8e-beac-4c34-97d8-3963f30bd9e1/tugemekeda.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/844a14b3-36de-4b5f-8387-48189e45eea4/guxufivowelevifilivaf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4829dfd3-d8f3-47b2-84f6-8fe399f563f2/nipisiretutibor.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/13fe3828-aa29-42a8-b265-4427a5104ac9/32009827218.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/47633575209.pdfIn PDF document text
  • https://s3.amazonaws.com/limewub/biology_projects_for_class_10.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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