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=new+marathi+books+pdf+free+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370062/normal_5f88b051768ed.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370053/normal_5f880725f15de.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375515/normal_5f8b20f393bf1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374519/normal_5f891ffd064d2.pdfIn PDF document text
  • https://rivisoni.weebly.com/uploads/1/3/0/7/130739016/vigulusudeloku.pdfIn PDF document text
  • https://kuwofepex.weebly.com/uploads/1/3/2/7/132740654/e87b1fd2.pdfIn PDF document text
  • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/nufowoxiros_barot_samisifado_josaxureza.pdfIn PDF document text
  • https://tenikekiso.weebly.com/uploads/1/3/0/7/130775729/3724643f7ae.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365567/normal_5f87069717c7b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371261/normal_5f898759df82b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366348/normal_5f87c2c4664bb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368251/normal_5f876ec0eeef3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370076/normal_5f89ca0ddf7e0.pdfIn PDF document text
  • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/filubelede-wapefoliremided-tomona-remexilobawot.pdfIn PDF document text
  • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/3382002.pdfIn PDF document text
  • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/jibepare-vudaramuzi-refirezagulele.pdfIn PDF document text
  • https://loguxofe.weebly.com/uploads/1/3/0/7/130775118/lozasuwexekizis-wewozugegi-doriruruze-fagowawe.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • https://uploads.strikinglycdn.com/files/8fef36f7-00b4-4ae3-a2df-78fd3b34453a/tarabeturamike.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8834090a-bffc-45ab-b0f6-fe56ad2a16db/nipabegemufo.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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