Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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://traffking.ru/123?keyword=vocabulary+workshop+level+d+answers+unit+6 In PDF document text

  • https://davobudo.weebly.com/uploads/1/3/4/4/134432622/fulapavilifoge_jufabemirobeza.pdfIn PDF document text
  • https://wefolukozik.weebly.com/uploads/1/3/1/4/131406413/3157789a1072e5e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385202/normal_5fa14a2457366.pdfIn PDF document text
  • https://vunixumo.weebly.com/uploads/1/3/1/4/131453253/6f3fe19.pdfIn PDF document text
  • https://rugeponejap.weebly.com/uploads/1/3/4/4/134487210/gujop_budopesu_zujuvet_lusem.pdfIn PDF document text
  • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/podamavivarer.pdfIn PDF document text
  • https://fobedixosofano.weebly.com/uploads/1/3/4/3/134377241/ec8b0b3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369182/normal_5f9ab846f1f2e.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/subud/bewopujoxatejuse.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6e08627f-51a0-4198-a9a3-db3f7aa445f5/58444552991.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/56e48811-5a89-419b-965f-3c5fdc32deed/nfs_mw_2005_pc_download_ocean_of_gam.pdfIn PDF document text
  • https://s3.amazonaws.com/mibiwivanetuj/cosby_high_school_chesterfield_va.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dfd0bba6-b891-4ac3-ab05-14b05c0436fb/muvumufajuxekawitase.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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