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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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/123?keyword=%25D0%25BD%25D0%25B5%25D0%25BC%25D0%25B5%25D1%2586%25D0%25BA%25D0%25BE+%25D1%2580%25D1%2583%25D1%2581%25D1%2581%25D0%25BA%25D0%25B8%25D0%25B9+%25D1%2581%25D0%25BB%25D0%25BE%25D0%25B2%25D0%25B0%25D1%2580%25D1%258C+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365545/normal_5f86f6c4a56e8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366647/normal_5f87723a8b369.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365602/normal_5f8717d67e189.pdfIn PDF document text
  • https://site-1039400.mozfiles.com/files/1039400/86714985042.pdfIn PDF document text
  • https://site-1043329.mozfiles.com/files/1043329/70399795574.pdfIn PDF document text
  • https://site-1041694.mozfiles.com/files/1041694/40514204907.pdfIn PDF document text
  • https://site-1038353.mozfiles.com/files/1038353/26278978903.pdfIn PDF document text
  • https://site-1038608.mozfiles.com/files/1038608/lukivalixuwajusanumo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366014/normal_5f881c207b56b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369920/normal_5f8809aa0d0dc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365661/normal_5f87830f0e949.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366665/normal_5f8720099e64d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366050/normal_5f87bc846a800.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/1a27643b41869.pdfIn PDF document text
  • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/paralavosezoxekularu.pdfIn PDF document text
  • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/5e07aa38b2d30.pdfIn PDF document text
  • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/74f863240e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366384/normal_5f8721a39ccdd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365662/normal_5f87f41e6ce37.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365655/normal_5f86f9e5a9137.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369315/normal_5f87ce2e7a56c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365602/normal_5f8709b158d3b.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/dcdbf45b-85f8-4639-9955-7c63f6ec9189/rusijagoligojen.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0375f8cf-adca-494d-851d-b1b4d8784c7f/99125637057.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e658fe3-8301-4dff-a7ba-0a302217d59c/88030568483.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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