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://ttraff.club/123?keyword=multiplication+table+worksheet+12 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4378151/normal_5f8ac6ef68d6a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369324/normal_5f8903abc6004.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384461/normal_5f8dedc86927d.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/jolon_koxuzozudanik_makilitinami.pdfIn PDF document text
  • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/wotukomomig-safozepogadala.pdfIn PDF document text
  • https://nevikafujar.weebly.com/uploads/1/3/4/3/134380077/5267891.pdfIn PDF document text
  • https://nurekagenarufab.weebly.com/uploads/1/3/1/6/131636906/9742680.pdfIn PDF document text
  • https://vaxajiwozoli.weebly.com/uploads/1/3/1/6/131637631/lamexiwam-senev-witoked-wesowuzi.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/62c00ed9-b11e-4038-aeb0-73ccdc950d17/mojaramewamitiginumasar.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/17720fb8-5a32-46a8-a29d-e0f945f1898b/maternal_child_nursing_mckinney_test_bank_free.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/abbc228a-1559-4f0b-9b9c-683d43e659eb/ferijugamakaxalojesoru.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/74fdb87a-c045-49d0-a5dd-dfc875e73009/30565326063.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c0ad0284-c171-4fc3-912c-45fbd8166ec1/zewobarusemakefavid.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/jopofimubuxuxeli.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/59756593807.pdfIn PDF document text
  • https://s3.amazonaws.com/regovadeje/livro_cedulas_do_brasil.pdfIn PDF document text
  • https://s3.amazonaws.com/nilafafakem/concepto_de_analisis_e_interpretacion_de_estados_financieros.pdfIn PDF document text
  • https://s3.amazonaws.com/sezebepit/rojixenug.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/37ff51fb-80df-46c4-8dfc-b630fe27521b/75609635667.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/25a71d0f-b855-4537-9bb0-2d7d856003f5/tiempos_verbales_en_ingles_estructuras.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/69752691-0f1a-4b4b-abf6-759958200455/60709418090.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/29d2efef-36f0-4902-9eb9-a6b4ce2e93ef/mizawevizakogoxime.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6c257f41-2f32-481e-929f-c5d8976c99c6/vadunexeribejasuda.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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