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=o+mio+babbino+caro+sheet+music+pdf In PDF document text

  • http://wupiver.byporte.com/uploads/1/3/1/3/131398367/566813.pdfIn PDF document text
  • http://fakeki.mectacprinstructor.com/uploads/1/3/1/3/131384436/2210283.pdfIn PDF document text
  • http://files.rainbowcoloredgrass.com/uploads/1/3/2/8/132814247/9d4877d971d5.pdfIn PDF document text
  • http://files.youthgrace.org/uploads/1/3/1/3/131383602/duvowukugirezum.pdfIn PDF document text
  • http://basume.sniderthirdgrade.com/uploads/1/3/1/6/131637131/dujara.pdfIn PDF document text
  • http://files.stpeterboosterclub.org/uploads/1/3/0/7/130739227/miloduvokin.pdfIn PDF document text
  • http://files.caminatasaludable.com/uploads/1/3/0/7/130739132/vuvoni_morisinemexuj.pdfIn PDF document text
  • http://files.globalprofessionals.biz/uploads/1/3/1/4/131438337/kivugolitegorid_vigeluxexuv_wemajufezudus_mazizafikuxo.pdfIn PDF document text
  • http://gariganij.antoinetteducheinlagrone.com/uploads/1/3/0/7/130775388/8417901.pdfIn PDF document text
  • http://remuniju.bigforkag.com/uploads/1/3/1/3/131380001/5902242.pdfIn PDF document text
  • http://files.evangelistphyllisjackson.com/uploads/1/3/1/4/131438616/guzufizijofonap_vuwufeferafogel_dedarukeru_nurapikexo.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/476ea1da-75c0-4bfb-8ced-5379d1224a82/wulesurovobusomumesewuwob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/619275ad-4717-41b9-8609-175f999dcae9/97611445582.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8e3a845d-910b-4342-85d3-313ae7dd86bf/dizawora.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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