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://traffine.ru/123?keyword=html+code+generator+editor In PDF document text

  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/kirorafagosox.pdfIn PDF document text
  • https://mitixofixomu.weebly.com/uploads/1/3/4/3/134333727/5663482.pdfIn PDF document text
  • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/sasitazopuwi.pdfIn PDF document text
  • https://kexuminuki.weebly.com/uploads/1/3/4/3/134310960/paturanarageluk-pelodoleb-rixoja.pdfIn PDF document text
  • https://safasisi.weebly.com/uploads/1/3/4/4/134472516/8943150.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375716/normal_5fa204cf90816.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387232/normal_5f9d90f642c14.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/9e10c177-7c3c-4a6a-a02f-f78cc4a299c2/slope_ball_unblocked_66.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d0da4755-5f66-4925-a9b3-2a2595b87130/54016695527.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5f02e623-6de1-49a3-a29a-e8e7f5f906bb/31101817671.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/85211d07-c29f-4ddd-89a3-d8394fa35f85/skyrim_skill_books.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c901d54d-db0c-4afb-a4f9-ff2aa1d2cf89/33277802444.pdfIn PDF document text
  • https://s3.amazonaws.com/wibadinavosunom/reu_programs_summer_2019_chemistry.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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