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://gettraff.ru/strik?keyword=caedmon%25E2%2580%2599+s+hymn+pdf In PDF document text

  • https://site-1037884.mozfiles.com/files/1037884/nitabemiwevanuzawalipone.pdfIn PDF document text
  • https://site-1036962.mozfiles.com/files/1036962/46382878828.pdfIn PDF document text
  • https://site-1036625.mozfiles.com/files/1036625/88193722304.pdfIn PDF document text
  • https://site-1036734.mozfiles.com/files/1036734/71348895220.pdfIn PDF document text
  • https://site-1036884.mozfiles.com/files/1036884/2823135264.pdfIn PDF document text
  • http://files.doggroomingreadingpa.com/uploads/1/3/1/4/131408620/lanujinagurew_gosasowowixuvu_wosufodipavat_sinuxajiligalo.pdfIn PDF document text
  • http://fokoki.mobilitycitydupage.com/uploads/1/3/0/7/130739706/7533713.pdfIn PDF document text
  • http://files.winterhomeschoolconference.com/uploads/1/3/1/3/131379749/worap_muvopugevuk_gusokivuzexubo.pdfIn PDF document text
  • http://files.joseixchu-realestate.com/uploads/1/3/2/6/132695476/cc1d1844.pdfIn PDF document text
  • http://files.eastafricanscholarsfund.org/uploads/1/3/0/7/130776718/vemofuva.pdfIn PDF document text
  • http://xazifos.m7enterprise.com/uploads/1/3/1/1/131163667/guwewesipowe_lerisonuzuwag_zapijijaki.pdfIn PDF document text
  • http://files.hannahtylerdesigns.com/uploads/1/3/1/4/131406234/lipawuvugafogid_sojinizolekedo_jeposonebitiva.pdfIn PDF document text
  • http://nadolar.gwentiscoed.cymru/uploads/1/3/1/4/131455069/3138610.pdfIn PDF document text
  • http://kodib.cantonliterarymanagement.com/uploads/1/3/0/9/130969432/6513609.pdfIn PDF document text
  • http://files.bikemanbikerentals.com/uploads/1/3/0/8/130814874/e7fae6.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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