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=digital+marketing+interview+questions+for+freshers+pdf+download In PDF document text

  • http://keliluw.jnaustralia.com.au/uploads/1/3/0/7/130775172/fokezulafimatiravof.pdfIn PDF document text
  • http://dulifar.wytrans.org/uploads/1/3/1/4/131482952/mikonapagebasel.pdfIn PDF document text
  • http://files.gruffcorn13.com/uploads/1/3/1/6/131637919/d453c.pdfIn PDF document text
  • http://files.photolenka.com/uploads/1/3/2/3/132302940/7237495.pdfIn PDF document text
  • http://nonup.burtenglish.com/uploads/1/3/0/7/130775288/6ad6162.pdfIn PDF document text
  • http://magazo.jvcai.org/uploads/1/3/1/4/131438500/f948f638.pdfIn PDF document text
  • http://files.spiritpotteryandsculpture.com/uploads/1/3/0/8/130874266/metoloturesa.pdfIn PDF document text
  • http://lagudi.inspirednourishment.ca/uploads/1/3/0/8/130814868/3727019.pdfIn PDF document text
  • http://files.russcarlton.com/uploads/1/3/1/3/131381675/5933f7c7c5694.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/3ffbffe3-ee21-4843-9a47-042391ad18d2/765623104.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fc78c6ef-c479-4fd0-9b52-e999ca680ea3/wefiwaji.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ca2c105c-5a90-4b7a-b12a-2446970ac9ee/dovagubuneb.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9b8a856a-8f5d-4778-a40e-2237c1cb45de/nogawebora.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4475920a-1a99-479b-abc1-cd02c7db0c5d/47726953154.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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