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=bfb+15+bfdi+wiki PDF link annotation

  • https://zazusixalug.weebly.com/uploads/1/3/4/4/134491239/8079551.pdfIn PDF document text
  • https://variwigegepug.weebly.com/uploads/1/3/4/3/134348450/mopobokedonaw.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4463002/normal_5fa73453017be.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403417/normal_5f941d3e11594.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368969/normal_5f895761f026c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366007/normal_5f8c241b3800b.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/0c346f69-f9dd-420a-a144-e7ce8f7f32ff/dofus_ouginak_pvm.pdfIn PDF document text
  • https://tevarew.files.wordpress.com/2020/11/88608638079.pdfIn PDF document text
  • https://s3.amazonaws.com/degagaziv/units_of_resistivity.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1dfcecb1-4776-4815-b817-39f51db0bab3/gloomhaven_sun_class.pdfIn PDF document text
  • https://gorujugiximu.files.wordpress.com/2020/11/karipevo.pdfIn PDF document text
  • https://bawesos.files.wordpress.com/2020/11/cousins_movie_2019.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/capitec_bank_fees_2019.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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