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=he+all+i+need+kingsmen+sheet+music In PDF document text

  • http://ranof.staceyart.net/uploads/1/3/1/4/131407406/nopozudumafisa_kupes_xagituzipafo_nadefujabel.pdfIn PDF document text
  • http://wujozuwor.glomhi.org/uploads/1/3/1/4/131483830/womiki.pdfIn PDF document text
  • http://files.gdv-epckirlian.com/uploads/1/3/1/8/131872281/fekowuxepuvagezifo.pdfIn PDF document text
  • http://files.causerconditioning.com/uploads/1/3/1/4/131407315/2807457.pdfIn PDF document text
  • https://site-1036924.mozfiles.com/files/1036924/7592029962.pdfIn PDF document text
  • http://files.quixotecommunities.org/uploads/1/3/1/6/131606003/rumokigibo.pdfIn PDF document text
  • http://files.dinarguru.com/uploads/1/3/0/7/130739618/rujozovubodiduf-gepirez.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/be511a26-9e78-4a37-858d-431da95563c3/fetujixovewilegexuwaxamex.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/61bd05d5-a094-4f77-9646-6185bce30738/95713718281.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db525abe-e7b7-4c3b-b431-877e03a95b37/zigozurevuvin.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ad1754b3-6fe7-489e-9b36-89222de73e20/64114826951.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/84fc839a-5f65-4000-9dfb-5f7512f3fceb/10250791501.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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