Malicious PDF — malware analysis report

Heuristics 5

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://crophysi.ru/wix?keyword=world+of+chemistry+textbook+answers+chapter+9 In PDF document text

  • https://static.s123-cdn-static.com/uploads/4368468/normal_5fdec8e750c21.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366668/normal_6009cb060d9da.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4409811/normal_5fee1d6c6ac5f.pdfIn PDF document text
  • http://kitusozuza.22web.org/combustion_analysis_questions_and_answers.pdfIn PDF document text
  • https://foraketarikovef.weebly.com/uploads/1/3/4/6/134608655/7719051.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4425235/normal_60264454687a6.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4379859/normal_5fedff45452e9.pdfIn PDF document text
  • https://sumulepali.weebly.com/uploads/1/3/4/8/134882140/719963.pdfIn PDF document text
  • http://aycotoro6.xyz/zizojzbijq.pdfIn PDF document text
  • https://bufudelazevel.weebly.com/uploads/1/3/4/7/134734798/f830c8f0e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387571/normal_60184dbba3940.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://josejutolaxof.rf.gd/86665340046.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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