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/strik?keyword=ego+ce4+electronic+cigarette In PDF document text

  • https://site-1037077.mozfiles.com/files/1037077/16472792638.pdfIn PDF document text
  • https://site-1037122.mozfiles.com/files/1037122/26002690630.pdfIn PDF document text
  • https://site-1039538.mozfiles.com/files/1039538/talejiximapasomorabegovel.pdfIn PDF document text
  • https://site-1037887.mozfiles.com/files/1037887/78137977923.pdfIn PDF document text
  • https://site-1038317.mozfiles.com/files/1038317/84278607319.pdfIn PDF document text
  • https://site-1036767.mozfiles.com/files/1036767/fomesajolipidu.pdfIn PDF document text
  • https://site-1036925.mozfiles.com/files/1036925/bisesawidufigiziru.pdfIn PDF document text
  • https://site-1036995.mozfiles.com/files/1036995/wapekejujaguzanav.pdfIn PDF document text
  • http://tabalo.nicoledigiacobbe.com/uploads/1/3/1/3/131383790/f1fb6f0d8.pdfIn PDF document text
  • http://files.higherqualitydetail.com/uploads/1/3/1/3/131379049/3537741.pdfIn PDF document text
  • http://files.pallavisastry.com/uploads/1/3/2/6/132681438/b5937.pdfIn PDF document text
  • http://nezeke.masonsmine.com/uploads/1/3/2/3/132303072/xisimivujajizuzi.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/deluz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/7746/2937/files/9023528848.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/6202/0246/files/iso_2768.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 PDF document text

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