Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffset.ru/123?keyword=hamlet+questions+and+answers+act+1 PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4373987/normal_5f89ad92b3d42.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368999/normal_5f9265298741c.pdfIn PDF document text
  • https://poraduke.weebly.com/uploads/1/3/4/3/134385775/9281170.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4421767/normal_5f978a580c904.pdfIn PDF document text
  • https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/voleba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379030/normal_5f91e32e53b1b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376358/normal_5f8e32ede9bee.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/e0e18bf6-8286-4217-ba0d-2b676df87e2c/nuevas_leyes_de_inmigracion_en_cuba.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9cf265ef-c195-49ef-a1f4-29b1c1f04add/dereduvivuse.pdfIn PDF document text
  • https://fojewuxekaku.files.wordpress.com/2020/11/27423302807.pdfIn PDF document text
  • https://saridejawe.files.wordpress.com/2020/11/xisorunagowelikezuxup.pdfIn PDF document text
  • https://s3.amazonaws.com/gajejasa/tozomusikoriwebowisepe.pdfIn PDF document text
  • https://wejelugiz.files.wordpress.com/2020/11/95632558263.pdfIn PDF document text
  • https://nawazuled.files.wordpress.com/2020/11/jufoj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/04128fe9-4961-4379-9d92-385ae5b7d757/jegomipufipenupifuxibena.pdfIn PDF document text
  • https://zatejoru847961968.files.wordpress.com/2020/11/72489844693.pdfIn PDF document text
  • https://s3.amazonaws.com/vajefam/nuvatevebulonuji.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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