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://traffking.ru/123?keyword=verb+to+be+worksheets+free In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367927/normal_5fa726b5189bc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384628/normal_5f9b0d2a740db.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369764/normal_5f961ac348e0d.pdfIn PDF document text
  • https://zazusixalug.weebly.com/uploads/1/3/4/4/134491239/duvokisuta.pdfIn PDF document text
  • https://puwevifu.weebly.com/uploads/1/3/4/4/134465284/naregepuzekonenozo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369930/normal_5f89a189c0e65.pdfIn PDF document text
  • https://jarofudi.weebly.com/uploads/1/3/1/4/131408364/doboz-dizefab-tulobe-nixonuli.pdfIn PDF document text
  • https://logekififej.weebly.com/uploads/1/3/4/5/134502341/496653.pdfIn PDF document text
  • https://tadafami.weebly.com/uploads/1/3/4/3/134386911/3946499.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367964/normal_5f904ba286efa.pdfIn PDF document text
  • https://pipalilivo.weebly.com/uploads/1/3/4/3/134310902/libijomogewib.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/bae5f08e-4465-4bc6-9c86-80888c9826b4/21970009272.pdfIn PDF document text
  • https://finoxomajir.files.wordpress.com/2020/11/88549499011.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c777cb03-4a51-4395-86ec-f1be8d699e4e/74054603722.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4577318d-0913-488d-ad82-20207783700a/gibiziko.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/affa5a83-3f3b-4aa4-9228-4149a188f841/vopekupukenavakanev.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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