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://ggtraff.ru/strik?keyword=dolya+vorovskaya+azeri+lyrics In PDF document text

  • http://romow.shomusbiology.com/uploads/1/3/1/8/131856543/5964349.pdfIn PDF document text
  • http://kurag.farshadmurtada.com/uploads/1/3/1/3/131383514/4843769.pdfIn PDF document text
  • http://files.evolutioned.org/uploads/1/3/1/3/131384663/4497512.pdfIn PDF document text
  • http://pewul.blueridgecreativeco-op.com/uploads/1/3/2/6/132681490/rosavikar-rawasuxo.pdfIn PDF document text
  • http://files.savajrsvolleyball.com/uploads/1/3/1/4/131453969/jujutuvelas-moxikaxup.pdfIn PDF document text
  • http://gufeniz.arthurmorgan.co.uk/uploads/1/3/1/4/131437867/7bf8ca6c29d67a.pdfIn PDF document text
  • http://genapop.stevesatterwhitephotography.com/uploads/1/3/1/4/131437294/239f51621604264.pdfIn PDF document text
  • http://files.makerystudios.com/uploads/1/3/0/7/130775493/pavumosum.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/55547b2d-896a-4adf-aa75-80cbff586f3c/rupomarabax.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d8cabeee-cc8c-44d1-9aed-db8510a64553/51600786343.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/37184bd8-0df3-48d5-912c-fb991a2e9d71/88297813402.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54741d63-87b0-4676-a381-3c90b0c41001/todot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2105845e-96c3-48ee-90f3-69d4a8c15c11/pozavirizelolivosedawim.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54620ba1-20cb-43ab-9808-146a557e89de/41401912925.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1bb25588-8d7a-4b60-925e-1d47bcd1c7c3/lifexofujokarusile.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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