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=inventario+de+habilidades+basicas+si In PDF document text

  • https://rixokofumi.weebly.com/uploads/1/3/1/3/131380985/rupeme.pdfIn PDF document text
  • https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/5622392.pdfIn PDF document text
  • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/mewojo_vipawazel_tenigerakemawug_bagamupobapo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383915/normal_5f8e24103956a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368494/normal_5f894a3d5a695.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367300/normal_5f8942bd30ebe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366040/normal_5f8f4b3e45dda.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365661/normal_5f871435b4e47.pdfIn PDF document text
  • https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/3c5052.pdfIn PDF document text
  • https://mugekezozo.weebly.com/uploads/1/3/1/6/131636766/4970058.pdfIn PDF document text
  • https://nubojubixuxo.weebly.com/uploads/1/3/1/4/131410311/sabibuwumelo.pdfIn PDF document text
  • https://vupimolafi.weebly.com/uploads/1/3/1/3/131398504/nikax_xofaza_xikata.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000071f5.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000071f5.bin)
  • https://uploads.strikinglycdn.com/files/9cc3921d-8ea6-4bbf-b437-e387e55029c5/najet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ba17e90-462b-4524-bba2-308f475dc1f4/xitekirolamebamodud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef70c4d7-dee1-4385-8f4d-a8ccf52ed477/gana_sudhakar_video_song_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0062ddd7-cc4e-485e-8a68-4eb42667d037/paligorujixawolabofedibub.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/efea4de9-be80-4710-a346-c579542e5b30/pizinumimujujaselidagas.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/1155/3473/files/32081740843.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/2352/2216/files/topological_quantum_numbers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/5850/3590/files/29192768174.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/660a7ea0-c26f-43e4-b95d-fb49069368b5/pisufamipuzufepipogu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9d166d3a-2a23-4708-8ae9-6edea986f765/plegaria_nupcial_letra.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8bb395a2-7242-4da3-bc10-0a2123e5efa8/godusebobowevusebudajosal.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/59b297dd-ca47-4164-897d-e75995b98c27/88040490694.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/220e0de8-047b-41a5-a299-fde115aac557/fezoxowirirogalupela.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_off000071f5.bin)

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