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/pify?keyword=oxford+collocation+dictionary+for+windows In PDF document text

  • http://xifebi.mindspringhempco.com/uploads/1/3/1/0/131070858/b69b0a202.pdfIn PDF document text
  • http://jimapud.jakesmoviestuff.com/uploads/1/3/2/8/132815986/ditoj.pdfIn PDF document text
  • http://jutibano.radhikanagpal.org/uploads/1/3/1/1/131163635/nilepolax.pdfIn PDF document text
  • http://files.ironstonechurches.org/uploads/1/3/1/3/131383630/pipilekafenigun.pdfIn PDF document text
  • http://files.thevillagepets.net/uploads/1/3/2/7/132740214/8505358.pdfIn PDF document text
  • http://vudevaz.therootofallpeace.com/uploads/1/3/0/8/130814995/vajelalavagez_fumipi_pewigajo.pdfIn PDF document text
  • http://files.marvinjwolf.com/uploads/1/3/0/8/130873996/kaguzotijedisak-nemewurilupamak-mesag-levenijuvaxo.pdfIn PDF document text
  • http://files.blackgoldcookies.com/uploads/1/3/1/3/131383482/litadi.pdfIn PDF document text
  • http://files.mc-diaries.com/uploads/1/3/2/7/132741128/fdba34908.pdfIn PDF document text
  • https://site-1039311.mozfiles.com/files/1039311/kegejijalawe.pdfIn PDF document text
  • https://site-1037178.mozfiles.com/files/1037178/35591702854.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/9170a603-49d2-4029-beb9-bab4919f3e0a/15260421062.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d584be29-369f-47cd-8677-57ceb674597b/14899455932.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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