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://ggtraff.ru/123?keyword=isolated+footing+design+example+pdf+is+456 In PDF document text

  • https://site-1041492.mozfiles.com/files/1041492/36528307827.pdfIn PDF document text
  • https://site-1036855.mozfiles.com/files/1036855/72417832072.pdfIn PDF document text
  • https://site-1039793.mozfiles.com/files/1039793/gedetibefisakuwitovibarel.pdfIn PDF document text
  • https://site-1045398.mozfiles.com/files/1045398/gepolot.pdfIn PDF document text
  • https://site-1038439.mozfiles.com/files/1038439/69725360419.pdfIn PDF document text
  • https://site-1038365.mozfiles.com/files/1038365/94501827982.pdfIn PDF document text
  • https://site-1039931.mozfiles.com/files/1039931/lejuzoniguri.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365560/normal_5f8723121386e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367017/normal_5f878c4797818.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365621/normal_5f8779b1051fa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366034/normal_5f870e49e7d93.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366057/normal_5f87926b95ae6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365541/normal_5f87bcdc4a393.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368982/normal_5f87fb14dd9bf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365539/normal_5f870c599d8fa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365628/normal_5f87635b0938a.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/1/0486/0153/0526/files/pericles_funeral_oration_questions_and_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/3362/0380/files/flyy_girl_omar_tyree.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/1828/8789/files/asc_appointment_notice_covid.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df41b60f-5787-4e5b-a837-acff7e7ed845/wapitazomamakosop.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0be50ccb-8952-4e3c-b7ea-9b8f808e60d3/nivojodedobozabojiseranew.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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