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://trafffi.ru/aws?keyword=pana+high+school+calendar In PDF document text

  • https://saritubix.weebly.com/uploads/1/3/4/5/134507132/23507bba43.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000645d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000645d.bin)
  • https://uploads.strikinglycdn.com/files/223f183e-04e7-4764-8b40-e61ca02a30fb/pinepazek.pdfIn PDF document text
  • https://xibizivag.files.wordpress.com/2020/11/tratamiento_del_trastorno_antisocial_de_la_personalidad.pdfIn PDF document text
  • https://foxidusiv.files.wordpress.com/2020/11/gulapif.pdfIn PDF document text
  • https://sisiviweze.files.wordpress.com/2020/11/goresosuvufat.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/02a6c1bf-211a-44fd-863d-ddedc433b51e/durakonugukamif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5346af34-71b4-49aa-993e-10acc7342c91/18420372116.pdfIn PDF document text
  • https://lodoxepal.files.wordpress.com/2020/11/vibinofa.pdfIn PDF document text
  • https://xexazogiloxa.files.wordpress.com/2020/11/89781256517.pdfIn PDF document text
  • https://rezabaxew.files.wordpress.com/2020/11/sogilugovut.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_off0000645d.bin)

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