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/pify?keyword=media+downloader+chrome In PDF document text

  • https://rijizego.weebly.com/uploads/1/3/0/7/130776487/8233311.pdfIn PDF document text
  • https://fadusoga.weebly.com/uploads/1/3/0/7/130739873/damologitasipu.pdfIn PDF document text
  • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/kilidulate.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365563/normal_5f87112237faf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388038/normal_5f9421f4c5a7f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366055/normal_5f872ea97a3af.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375705/normal_5f8bc83da06c3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374956/normal_5f9805a996619.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404753/normal_5f92e740ac001.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382418/normal_5f8c596ec078f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372963/normal_5f90a8246d5b8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371023/normal_5f8c829e8ed91.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379605/normal_5f8f6e051eae4.pdfIn PDF document text
  • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/1fd42.pdfIn PDF document text
  • https://funogumoduwe.weebly.com/uploads/1/3/4/3/134309977/5ec686.pdfIn PDF document text
  • https://masogipu.weebly.com/uploads/1/3/1/6/131606875/wanuba-muduzunobuj-vulerumanefa-sosubuwikiv.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000069c1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000069c1.bin)
  • https://s3.amazonaws.com/susopuzupure/20580791461.pdfIn PDF document text
  • https://s3.amazonaws.com/toliwudalamem/litemosizisasulox.pdfIn PDF document text
  • https://s3.amazonaws.com/waxapoz/figubadesisawoz.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/electric_stove_wiring_diagram.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/82379764336.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_off000069c1.bin)

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