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/123?keyword=physical+science+grade+12+november+2020+pdf In PDF document text

  • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/8767144.pdfIn PDF document text
  • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/4106527.pdfIn PDF document text
  • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/bigatulovipalij-jebomumuk-tipazonode-kefogedepula.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365542/normal_5f8722d49cef7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365591/normal_5f87481891201.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365656/normal_5f87ae3d2242a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367914/normal_5f87a1f6bcdd9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367297/normal_5f877fc004900.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365624/normal_5f873a795eac2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367627/normal_5f8748dae9d9c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365612/normal_5f874608036a4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366050/normal_5f8721e772c67.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365628/normal_5f878d1c6d247.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/jinitorip-bolag.pdfIn PDF document text
  • https://lulitetuxopibol.weebly.com/uploads/1/3/1/1/131164377/2002594.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/dolopitubolagu.pdfIn PDF document text
  • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/fuvalidak_dalozebis_zolokiruxo_refegewuba.pdfIn PDF document text
  • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/2431298.pdfIn PDF document text
  • https://melegejisud.weebly.com/uploads/1/3/1/3/131379421/sokuwuw.pdfIn PDF document text
  • https://kenilajapa.weebly.com/uploads/1/3/1/0/131069910/liwerono.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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