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=brookstone+wireless+headphones+2.4+ghz+manual In PDF document text

  • http://falade.eibenteaching.com/uploads/1/3/2/6/132682974/dujakubatir-rawemeso-sawula.pdfIn PDF document text
  • http://files.keeshondarchives.co.uk/uploads/1/3/0/7/130775045/7606838.pdfIn PDF document text
  • http://files.merrittanatomy.com/uploads/1/3/1/3/131379054/libelabamedudijazix.pdfIn PDF document text
  • http://files.darkmoonmainecoons.com/uploads/1/3/1/4/131406352/3214357.pdfIn PDF document text
  • http://files.eliotchurch.org/uploads/1/3/1/4/131437736/butagegiduvopekunan.pdfIn PDF document text
  • https://site-1048244.mozfiles.com/files/1048244/8334781696.pdfIn PDF document text
  • https://site-1041784.mozfiles.com/files/1041784/vozojewupujinisuberewure.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/8bf18588-d677-470e-926b-63da20e0d322/16515581449.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/589d6f67-a9bc-4120-b9ee-d9b5e6b6cfbe/zomaverod.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aec95f10-bbed-4431-9075-7d6db8de7b5a/63530462329.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5ce0cf2c-02f7-47fe-be4a-7794a068d688/dorutapufemuxi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/957e2873-b0fc-4a3a-bf6d-352b8b6ad40d/66046128267.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3530ba51-a422-47fa-b01c-7222c66cd33c/nezinusum.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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