Malicious PDF — malware analysis report

Heuristics 6

• 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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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://ggtraff.ru/123?keyword=strategies+for+engaging+students+in+learning+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367311/normal_5f87406ad8786.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365998/normal_5f8734b2dcd15.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369904/normal_5f887fd83db76.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366623/normal_5f8733862179b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366034/normal_5f87497de9389.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/xojajuv-mitegejitokuxig.pdfIn PDF document text
  • https://kakawugob.weebly.com/uploads/1/3/0/9/130969990/1364057.pdfIn PDF document text
  • https://wovasemuzusalej.weebly.com/uploads/1/3/1/6/131636629/giradadiniw.pdfIn PDF document text
  • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/futajumod.pdfIn PDF document text
  • https://kutenamig.weebly.com/uploads/1/3/0/7/130740069/2716509.pdfIn PDF document text
  • https://vefoxetewezelir.weebly.com/uploads/1/3/1/4/131483279/fujuresuwifu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369664/normal_5f8848b2702e2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365620/normal_5f875a0a2b0e9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367281/normal_5f874ff18f309.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366366/normal_5f8973e5b2d03.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369187/normal_5f8975149fd63.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368750/normal_5f87b1084ad1e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f87130328aef.pdfIn PDF document text
  • https://)RelatedIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000a927.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000a927.bin)
  • https://uploads.strikinglycdn.com/files/1630280d-99aa-4873-a65c-61a5c98b5518/limoberupesuno.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/61ff7e4a-718b-4621-b2c7-5df69bcb737b/rukatitudiditozopariwusum.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2ecd7f58-de95-4b84-b554-8d98ad62e8e6/turaxasexefop.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_off0000a927.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000ed10.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000ed10.bin)

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