Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafftec.ru/aws?keyword=cool+math+games+unblocked+77+at+school PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4369162/normal_5f89f7abb863d.pdfIn PDF document text
  • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/5282818.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402740/normal_5f9bd924385b5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381988/normal_5f9eb68578db9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410952/normal_5f990d8b443cf.pdfIn PDF document text
  • https://lolijejolo.weebly.com/uploads/1/3/4/4/134442146/2410741.pdfIn PDF document text
  • https://kegilosibumu.weebly.com/uploads/1/3/4/5/134513635/fc8756d0b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367927/normal_5f8c743eab447.pdfIn PDF document text
  • https://nunoperiv.weebly.com/uploads/1/3/1/8/131856708/pazot.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/sasufufa/armonia_y_contrapunto_musical.pdfIn PDF document text
  • https://mivepir.files.wordpress.com/2020/11/5079203302.pdfIn PDF document text
  • https://s3.amazonaws.com/banula/10th_class_biology_notes_in_hindi_download.pdfIn PDF document text
  • https://disabuwipe.files.wordpress.com/2020/11/patule.pdfIn PDF document text
  • https://mikijija.files.wordpress.com/2020/11/diesel_generator_fuel_consumption_formula.pdfIn PDF document text
  • https://saxofenofam.files.wordpress.com/2020/11/id_checking_guide_free.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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