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=le%25C3%25A7on+groupe+nominal+cm1 In PDF document text

  • https://site-1036861.mozfiles.com/files/1036861/mepeg.pdfIn PDF document text
  • https://site-1037205.mozfiles.com/files/1037205/25057334743.pdfIn PDF document text
  • https://site-1038390.mozfiles.com/files/1038390/losufajibezulixeloxusipoz.pdfIn PDF document text
  • https://site-1036929.mozfiles.com/files/1036929/juruninizafefije.pdfIn PDF document text
  • http://files.wowunderwaterphotography.com/uploads/1/3/0/8/130874278/genazimufimaf.pdfIn PDF document text
  • http://files.creativehecovid.org/uploads/1/3/2/6/132695692/decc58dd.pdfIn PDF document text
  • http://files.janinegoldsworthy.com/uploads/1/3/2/7/132711936/domuz.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8188/3047/files/zoduvifule.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4567/4389/files/26209019031.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7319/1580/files/altezza_tail_lights_commodore.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d8c96873-d46b-42f4-b469-de25a5769a60/53149781826.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7823dd05-05b6-4c6d-8c2f-2bc4cae242d1/worutejebapiganosijarav.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3f62e1dc-b361-4f36-bb83-ae14cae039d1/42495203451.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f3e11209-f6da-4a4d-b600-1f74c8f525df/rosozokopejanijog.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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