Malicious PDF — malware analysis report

Heuristics 4

• 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 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=escala+cromatica+clarinete+sib+pdf In PDF document text

  • https://site-1036910.mozfiles.com/files/1036910/73804867130.pdfIn PDF document text
  • https://site-1036661.mozfiles.com/files/1036661/lozumepofetapanizazejo.pdfIn PDF document text
  • https://site-1036924.mozfiles.com/files/1036924/rawofesovepo.pdfIn PDF document text
  • https://site-1038825.mozfiles.com/files/1038825/67386715340.pdfIn PDF document text
  • https://site-1036816.mozfiles.com/files/1036816/tunujotorumopuludasuwaji.pdfIn PDF document text
  • https://site-1036987.mozfiles.com/files/1036987/nuludedo.pdfIn PDF document text
  • https://site-1036713.mozfiles.com/files/1036713/7632929150.pdfIn PDF document text
  • https://site-1036640.mozfiles.com/files/1036640/37334857541.pdfIn PDF document text
  • http://pakaf.jgolearn.com/uploads/1/3/1/1/131164462/zegeduvujama-mineluxebunilu-vilafitezi-wetijux.pdfIn PDF document text
  • http://files.mylunarsign.com/uploads/1/3/1/8/131857482/6fcae3.pdfIn PDF document text
  • http://xozajoku.staceywelsh.com/uploads/1/3/2/6/132681734/7621777.pdfIn PDF document text
  • http://files.3ringbinder.org/uploads/1/3/1/6/131637364/povuzagebo.pdfIn PDF document text
  • http://levono.mydesignsbypamela.com/uploads/1/3/2/3/132303054/muxikagepeto-xefunudofon-mopotuso-mupokoweguvug.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/df887e10-b254-4c3c-9b43-bb4b1529d54d/wadozukofulobugirexabo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f192d4ec-215b-459d-a57d-e17a5bc86a18/zexusafiwoximebi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d89fe318-4883-4e86-a9e2-06314c738e09/talimadenegejotuxexifavul.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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