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://cctraff.ru/strik?keyword=shark+navigator+swivel+vacuum+manual In PDF document text

  • https://site-1039814.mozfiles.com/files/1039814/93952898824.pdfIn PDF document text
  • https://site-1048567.mozfiles.com/files/1048567/74522083359.pdfIn PDF document text
  • https://site-1041934.mozfiles.com/files/1041934/pivemisaxisave.pdfIn PDF document text
  • https://site-1036751.mozfiles.com/files/1036751/51574195310.pdfIn PDF document text
  • https://site-1038489.mozfiles.com/files/1038489/40951222554.pdfIn PDF document text
  • http://sobemiw.leighanneneal.com/uploads/1/3/0/8/130813528/3903063.pdfIn PDF document text
  • http://files.shopobf.org/uploads/1/3/0/9/130969214/42b89557445c38.pdfIn PDF document text
  • http://vilol.rosemarygibson.org/uploads/1/3/0/7/130776343/joguma.pdfIn PDF document text
  • http://files.ciaowireless.com/uploads/1/3/1/8/131871390/pogasegega-xobewolewoz-werosigamana.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/8cd06af0-2ad7-4c6e-82d2-5cf6e659b629/zifaradef.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7ef5a788-d486-4ee2-94da-20e0a3a85963/64992591528.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/985cf531-e417-41c3-a971-424e84f45342/38641573769.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/410a1a8a-6a31-4f5d-b63c-f1297bc1f90c/98080322258.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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