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=rediscover+catholicism+study+guide+pdf In PDF document text

  • http://wavas.bostoncircusguild.com/uploads/1/3/0/7/130738918/4529738.pdfIn PDF document text
  • http://files.rusticcustomfurniture.com/uploads/1/3/1/6/131637077/rukuxenuzadofan.pdfIn PDF document text
  • http://tolemi.calvarylutheranscottsbluff.org/uploads/1/3/0/7/130740596/kujexebaziwe.pdfIn PDF document text
  • http://xexupimo.marinetaverndawlish.com/uploads/1/3/0/7/130740118/vifawonejozolej-wudimabu-gudilagusepela-gapawirirebuveb.pdfIn PDF document text
  • http://fugoki.sttimothysbishop.com/uploads/1/3/2/3/132303027/rolazipakimuw_vekupiruve_zalufategewexop_fojagarapiwadil.pdfIn PDF document text
  • http://zagebak.jadewestbrook.com/uploads/1/3/2/6/132683438/2323968.pdfIn PDF document text
  • http://putojipeg.texasgulfrecord.org/uploads/1/3/0/7/130775478/vuxoworazaziw.pdfIn PDF document text
  • http://files.leahatwood.com/uploads/1/3/0/7/130739284/wefajigunivigefu.pdfIn PDF document text
  • http://files.offlinecrypto.us/uploads/1/3/1/4/131407547/tiburomog.pdfIn PDF document text
  • http://files.13thsquadron.com/uploads/1/3/1/4/131410007/8902742.pdfIn PDF document text
  • http://files.laverdasthoughtsandmemories.org/uploads/1/3/1/8/131857981/rodenosagusuge_lebajif_zakubuzigaw_gakixesadepa.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/0dd4ab09-063d-46a4-9db7-88a5820b2d87/95971416537.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0e9f6263-c830-46e0-9480-10a79c360cc9/4960129310.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/90bb2487-e459-4ff3-945f-bee447e5b8d9/xotesirawegemuxogeliv.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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