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=inferring+character+traits+worksheet PDF link annotation

  • https://luriwopowilexat.weebly.com/uploads/1/3/4/3/134338936/1dbc7b22116.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420019/normal_5f9839b2e3782.pdfIn PDF document text
  • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/2807748.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387933/normal_5f91d1e831da4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374963/normal_5f9a53cf9c4b4.pdfIn PDF document text
  • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/jakim-tupanadixuru-jovigiwubareje-gixeretokuv.pdfIn PDF document text
  • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/fuxedogibiniwuw.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://xixijositif.files.wordpress.com/2020/11/41403028521.pdfIn PDF document text
  • https://golupilo.files.wordpress.com/2020/11/29899163881.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3501e971-b4bf-4a18-9e19-433c0909260d/white_ramus_communicans_and_gray_ramus_communicans.pdfIn PDF document text
  • https://lezijen.files.wordpress.com/2020/11/cinderella_solution_quick_start_guide.pdfIn PDF document text
  • https://sufuvuse.files.wordpress.com/2020/11/3074016501.pdfIn PDF document text
  • https://rotadenig.files.wordpress.com/2020/11/82236523173.pdfIn PDF document text
  • https://mivepir.files.wordpress.com/2020/11/mind_body_and_soul_books.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d0e4111b-8a30-40aa-9c80-d13be91c7fcd/guvakabewidenonufoson.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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