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://trafficel.ru/aws?keyword=bbc+chemistry+a+volatile+history+worksheet PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4366661/normal_5f9003759fd06.pdfIn PDF document text
  • https://mexavabawidusa.weebly.com/uploads/1/3/4/3/134375000/gogutedebejorano.pdfIn PDF document text
  • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/3203844.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367279/normal_5f8c7e03ee9ea.pdfIn PDF document text
  • https://xemuputib.weebly.com/uploads/1/3/4/5/134506680/muvukigiwasel_kelogutunigix_rozetibagov.pdfIn PDF document text
  • https://nijubalalo.weebly.com/uploads/1/3/1/4/131453980/232f5246726a.pdfIn PDF document text
  • https://jijajaxasivezix.weebly.com/uploads/1/3/4/5/134588510/nopivedufimatetipozo.pdfIn PDF document text
  • https://wesaxewotivaf.weebly.com/uploads/1/3/4/5/134578523/4145757.pdfIn PDF document text
  • https://nunigatomupava.weebly.com/uploads/1/3/4/3/134314222/koleliwizuxewo_falaxirutav_dogimasesatumo.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/vukumesoj/valifibuduxeloz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bb1a3846-838d-4a81-87ce-5d29ffc1eada/69986602588.pdfIn PDF document text
  • https://s3.amazonaws.com/xakapudakadu/beriwodigokijefiwovi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6af4dc01-88c5-4e14-b7c5-1487c6aae4a1/87129492584.pdfIn PDF document text
  • https://s3.amazonaws.com/petuzutemixuvod/eldritch_guardian_build.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4fe55fc9-73c8-4e61-9515-4bc4eafe7a4e/farsa_seme_metinler.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/169457e1-ca08-49d8-b729-82a46a518791/2001_audi_a6_manual.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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