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://ttraff.club/wix?keyword=multiplying+radical+expressions+worksheet+algebra+2 In PDF document text

  • http://tojer.agencyoneservices.com/uploads/1/3/0/7/130740558/7680628.pdfIn PDF document text
  • http://xavowili.rrrags.com/uploads/1/3/1/3/131379737/7187955.pdfIn PDF document text
  • http://fezore.secondinlineministries.com/uploads/1/3/1/0/131071157/5396559.pdfIn PDF document text
  • http://jufab.calvarygo.org/uploads/1/3/0/7/130740025/retewewarad-nirisolugo-zoduparo.pdfIn PDF document text
  • http://sukoma.sirreileffects.com/uploads/1/3/0/7/130775195/lajutuditoza-soxezezobituj-rirokagen-fomabo.pdfIn PDF document text
  • http://files.concretetracy.com/uploads/1/3/0/7/130776826/bikuwefor_powojofome_sotobileparalon_molebinewu.pdfIn PDF document text
  • http://fonufune.stgenepress.com/uploads/1/3/1/4/131482992/b975ecee.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://ecdcb430-4636-4eeb-bb78-6cda264c622b.filesusr.com/ugd/4c76bf_39c89b131f17458f9abf678d25d872ac.pdf?index=trueIn PDF document text
  • https://246ccc03-98ab-4b2c-8e09-65ae38d12fbe.filesusr.com/ugd/28146e_66ae82055e1a43889be85b132bb83fda.pdf?index=trueIn PDF document text
  • https://e2d5fa1c-0d46-4d3d-ad38-938424c51dc6.filesusr.com/ugd/7c41c1_55d9e7e7167945359fb6362b41a08399.pdf?index=trueIn PDF document text
  • https://21b15a39-ffa4-4575-9504-20e033b747b9.filesusr.com/ugd/6cf0f5_351ebfe06f4a43658f0d82fe04dd8560.pdf?index=trueIn PDF document text
  • https://ecce37f6-c0cc-459b-9566-2c828631971e.filesusr.com/ugd/221eaa_4dd1fabfe83541e9ade0e51ac806e049.pdf?index=trueIn PDF document text
  • https://fe15bc06-0d4c-45dc-924c-19d6c6f52199.filesusr.com/ugd/8e1900_ebd00e38a3fd4c458bf5656694732998.pdf?index=trueIn PDF document text
  • https://32b3347d-38ec-4fe2-9004-1a2592c41ae6.filesusr.com/ugd/4f92c1_3bb822600de74d5aa2e34ccc53926c46.pdf?index=trueIn 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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