Malicious PDF — malware analysis report

Heuristics 4

• 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 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=ricardo+geromel+livro+pdf In PDF document text

  • https://site-1039161.mozfiles.com/files/1039161/zedumoluxamavivudeganul.pdfIn PDF document text
  • https://site-1042992.mozfiles.com/files/1042992/77779229330.pdfIn PDF document text
  • https://site-1036934.mozfiles.com/files/1036934/31653292725.pdfIn PDF document text
  • https://site-1042496.mozfiles.com/files/1042496/11258435469.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366000/normal_5f87441fd7f45.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366376/normal_5f8710abd3c79.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365626/normal_5f86f3f052b56.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366371/normal_5f87110121169.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369933/normal_5f883aaded738.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367004/normal_5f87637c02e6d.pdfIn PDF document text
  • https://site-1036884.mozfiles.com/files/1036884/12309299835.pdfIn PDF document text
  • https://site-1038691.mozfiles.com/files/1038691/24970484853.pdfIn PDF document text
  • https://site-1036775.mozfiles.com/files/1036775/sagudanumamuf.pdfIn PDF document text
  • https://site-1040341.mozfiles.com/files/1040341/wifigizates.pdfIn PDF document text
  • https://site-1043965.mozfiles.com/files/1043965/pexufupijut.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/nimemoroligamaj-tafixidupara.pdfIn PDF document text
  • https://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/vusize-refovun-nisinatuvetom-vijutemefinemo.pdfIn PDF document text
  • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/7fde262bb4b.pdfIn PDF document text
  • https://tunimesepet.weebly.com/uploads/1/3/1/4/131455680/xupem-zirixurubomi-nesisejawipagov-fadirunetoweti.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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