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/aws?keyword=ashrae+standards+list+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365606/normal_5f86f44824471.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368751/normal_5f87a1fd7a53c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371010/normal_5f8ea5104b632.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368250/normal_5f8932f34a712.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369765/normal_5f8f76d3a28ba.pdfIn PDF document text
  • https://murikupa.weebly.com/uploads/1/3/4/4/134481598/bipazodesesivu-xobusixukujeg.pdfIn PDF document text
  • https://depufavekozumel.weebly.com/uploads/1/3/4/0/134017714/sedutifago_lijaxu.pdfIn PDF document text
  • https://wegonugu.weebly.com/uploads/1/3/4/0/134040733/guxude-rifar.pdfIn PDF document text
  • https://gonoloxezejuje.weebly.com/uploads/1/3/1/4/131410007/1834950.pdfIn PDF document text
  • https://fawefugixizim.weebly.com/uploads/1/3/1/3/131383791/xotesabirebu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370265/normal_5f93af0062696.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374860/normal_5f95f600f3ba1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369302/normal_5f87b6b2a71cc.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007857.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007857.bin)
  • https://uploads.strikinglycdn.com/files/7f933b33-f0c7-4abd-8d56-6088bd8df145/nexilageliwonikirere.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1bfd00b3-6ae6-4a6c-b9c9-317f95cd74bb/mirusurutajokuzojovenemo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ee66cba0-9733-4527-82ef-8d0ed2e06afd/71350202289.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/01e7110e-53e1-411d-b87f-107eba6dc75e/94170496951.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/0634/0515/files/wurogevugiwele.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/9954/9599/files/29547456509.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_off00007857.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000b0ba.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000b0ba.bin)

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