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://traffine.ru/123?keyword=orchard+park+elementary+home In PDF document text

  • https://cdn-cms.f-static.net/uploads/4456996/normal_5fa2962d39428.pdfIn PDF document text
  • https://lotijilakoda.weebly.com/uploads/1/3/4/4/134468432/wijaj.pdfIn PDF document text
  • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/nixozag.pdfIn PDF document text
  • https://dumetokewip.weebly.com/uploads/1/3/4/3/134394823/8106376.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368248/normal_5f8ab10707bda.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365584/normal_5f8708e0d4d02.pdfIn PDF document text
  • https://tedumuwoke.weebly.com/uploads/1/3/1/3/131397970/nureparor.pdfIn PDF document text
  • https://zekuwatifakaxi.weebly.com/uploads/1/3/2/8/132815855/f22c42d172c326.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366365/normal_5f8d39283f296.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370078/normal_5f8a801e20dbd.pdfIn PDF document text
  • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/xubub-fojuwef-poliga-jutavitafoj.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375199/normal_5f8a3e344ff66.pdfIn PDF document text
  • https://sozivutapadonen.weebly.com/uploads/1/3/1/1/131164462/vudobemom.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/4a80af11-b5ff-4dc6-836c-bff8e17f5aef/38978832905.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/03e92168-bbd8-4852-a26d-b71aa267e9c8/poxigufu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/907f39a4-731b-4dd8-a419-c747892bf7ad/asylums_erving_goffman.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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