Malicious PDF — malware analysis report

Heuristics 4

• 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 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/strik?keyword=net+force+and+coefficient+of+friction+worksheet In PDF document text

  • http://gupemigos.mybarringtonhoa.com/uploads/1/3/1/6/131607662/8983204.pdfIn PDF document text
  • http://gitavas.watchworksnc.com/uploads/1/3/1/4/131407995/sipaxupupo.pdfIn PDF document text
  • http://pabififu.rwandamedicaljournal.org/uploads/1/3/1/3/131380651/4775006.pdfIn PDF document text
  • http://files.mirkesinsurance.com/uploads/1/3/1/4/131406749/6970704.pdfIn PDF document text
  • https://site-1038980.mozfiles.com/files/1038980/pawijokefos.pdfIn PDF document text
  • https://site-1041169.mozfiles.com/files/1041169/39250547528.pdfIn PDF document text
  • https://site-1037267.mozfiles.com/files/1037267/76577997722.pdfIn PDF document text
  • https://site-1036729.mozfiles.com/files/1036729/34075871982.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/1/0483/4557/9683/files/dopiligisaxed.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/0268/6372/files/40216206258.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/bakedefiretep.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/3827/8300/files/informed_consent_example_social_work.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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