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=the+cradle+bl2 PDF link annotation

  • https://patewolenapew.weebly.com/uploads/1/3/4/5/134525441/kosagopokopiw_nojutobevabadav_nagen.pdfIn PDF document text
  • https://dujenavu.weebly.com/uploads/1/3/4/3/134366251/bc19187.pdfIn PDF document text
  • https://nokifijipuf.weebly.com/uploads/1/3/4/3/134305843/wuwuvuperazisenuki.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367275/normal_5f873c0584024.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368489/normal_5f89763db320f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368782/normal_5f9c56db440c7.pdfIn PDF document text
  • https://tubomomumaxef.weebly.com/uploads/1/3/4/5/134508744/9919338.pdfIn PDF document text
  • https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/9064803.pdfIn PDF document text
  • https://rosuxemu.weebly.com/uploads/1/3/0/7/130776582/3fe00e91361cd0a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369922/normal_5f8fec7592a85.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4454041/normal_5fa2a93de33ff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365608/normal_5f87264d29476.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4411931/normal_5f9401e518c1a.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/a2554f4b-47af-487b-bb62-b1a38794cf0c/rijabefipokog.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1404354d-5f68-45e2-8c2e-e4abbd3a5836/the_bible_as_literature_an_introduction.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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