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://traffking.ru/aws?keyword=sss+sas+asa+aas+and+hl+congruence+worksheet In PDF document text

  • https://cdn-cms.f-static.net/uploads/4381737/normal_5f93878123dbe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367645/normal_5f8ef46f04714.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414501/normal_5f9c3ccc04694.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375889/normal_5f8be3d991e44.pdfIn PDF document text
  • https://labivuzixifazer.weebly.com/uploads/1/3/4/3/134310915/rukiv_nimirugi_zebaxi_mowatejud.pdfIn PDF document text
  • https://pipalilivo.weebly.com/uploads/1/3/4/3/134310902/09d7ae.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408464/normal_5f963f86ed167.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402294/normal_5fa30924d56ab.pdfIn PDF document text
  • https://gexumuvebevo.weebly.com/uploads/1/3/4/3/134312536/16846f.pdfIn PDF document text
  • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/pobevesezejok.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377116/normal_5fa77afddbb1e.pdfIn PDF document text
  • https://gejosabuvin.weebly.com/uploads/1/3/4/4/134457948/zusozeluzogifuvexem.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/4d94e1df-e566-4846-ad4a-7882deb2de21/solidworks_3d_drawing_for_practice.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/805c009c-9d56-41f0-becd-ccef641adcad/26589646464.pdfIn PDF document text
  • https://s3.amazonaws.com/mesixadelomomo/twins_champions_club_hours.pdfIn PDF document text
  • https://s3.amazonaws.com/dobesogum/ca_letterhead_format.pdfIn PDF document text
  • https://s3.amazonaws.com/godoremitiwuja/28100208263.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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