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://ttraff.link/123?keyword=the+cask+of+amontillado+questions In PDF document text

  • https://pevinuwipe.weebly.com/uploads/1/3/0/8/130873962/3530610.pdfIn PDF document text
  • https://vimikipemaw.weebly.com/uploads/1/3/4/3/134331773/mirikasera_dorinep_zajetuladekizu.pdfIn PDF document text
  • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/vupuxa.pdfIn PDF document text
  • https://rilolani.weebly.com/uploads/1/3/4/4/134459611/kolari_bixurevopulosal_nedifufil_masifoxujamapak.pdfIn PDF document text
  • https://tamagokevalagir.weebly.com/uploads/1/3/0/7/130776783/b1c805.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385631/normal_5f93fe435ad28.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383797/normal_5f93f937bdd3e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366042/normal_5f875dc1d8ffb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369506/normal_5f8d4f654c15c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366309/normal_5f87654ed7900.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004e29.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004e29.bin)
  • https://uploads.strikinglycdn.com/files/d33e673f-dd52-4a60-8e7d-f10bcc378ee5/19942834420.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8a3c1125-0a4c-46fc-8862-23d0626b3b29/47505794256.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/calendar_2019_week_numbers.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/building_codes_illustrated.pdfIn PDF document text
  • https://s3.amazonaws.com/divelatoxa/single_column_cash_book_format.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8900/2645/files/39623093662.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/lebutezatixepijubuvu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/5430/3905/files/4039424564.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 extracted file (font_00_sfnt_off00004e29.bin)

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