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/123?keyword=laocoon+speaks+out+against+the+trojan+horse In PDF document text

  • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/gidijegesofizazaweju.pdfIn PDF document text
  • https://fupuvoriru.weebly.com/uploads/1/3/4/4/134494751/pinizijeguno.pdfIn PDF document text
  • https://donibirumot.weebly.com/uploads/1/3/4/4/134463545/6514771.pdfIn PDF document text
  • https://viziwebaf.weebly.com/uploads/1/3/3/9/133999863/9726bc7346.pdfIn PDF document text
  • https://nuzilemuf.weebly.com/uploads/1/3/4/4/134479477/jopufinituxixo-bopozotoloruzo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371010/normal_5f9661a5d44b0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377371/normal_5f8b368e871ad.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376600/normal_5f91d9a2c5faa.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00009404.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00009404.bin)
  • https://uploads.strikinglycdn.com/files/420fbedc-2a59-4933-8eb4-66c7abe20d3c/glencoe_algebra_2_chapter_7_answer_key.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2dd9bd58-e8f6-4f29-997d-3a6e6c57769f/53346936344.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/996d4296-c0e3-40e5-ac2f-bf8c427b0688/nubolamegebo.pdfIn PDF document text
  • https://s3.amazonaws.com/viboxikuz/bronconeumonia_etiologia.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/ziwowonefozudabebagal.pdfIn PDF document text
  • https://s3.amazonaws.com/fibesezati/arable_crop_production.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/75479dab-b830-4ca5-a8e2-553d97dccefe/watergirl_and_fireboy_unblocked_games.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b5096330-4d05-4f8c-a00a-170dde36ceee/lenovo_is6xm_motherboard_f_panel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4743fc5b-e6c9-49b3-812a-ba8922c7f30a/1261665481.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/phonics_worksheets_preschool.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/lte_capacity_planning.pdfIn PDF document text
  • https://s3.amazonaws.com/besafefaf/rijapufesisofat.pdfIn PDF document text
  • https://s3.amazonaws.com/bokofapig/trends_and_issues_in_education.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 extracted file (font_00_sfnt_off00009404.bin)

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