Malicious PDF — malware analysis report

Heuristics 4

• 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 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://ttraff.me/123?keyword=introduction+to+java+programming+and+data+structures In PDF document text

  • https://cdn-cms.f-static.net/uploads/4377371/normal_5f93efc3b4251.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371783/normal_5f9b57364d77d.pdfIn PDF document text
  • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/af42e912fc3e1.pdfIn PDF document text
  • https://putigazabikikim.weebly.com/uploads/1/3/2/6/132682718/rorusugopa.pdfIn PDF document text
  • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/d8b4f785f.pdfIn PDF document text
  • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/jegaka.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372707/normal_5f8dd17b3b26d.pdfIn PDF document text
  • https://dudumopovidin.weebly.com/uploads/1/3/4/3/134308156/bofowiwelikibulita.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388413/normal_5f8eac7287016.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368228/normal_5f87aeed8b425.pdfIn PDF document text
  • https://datirelegewewat.weebly.com/uploads/1/3/4/3/134329883/5329929.pdfIn PDF document text
  • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/0bb9c02eeaab6a2.pdfIn PDF document text
  • https://takaranedo.weebly.com/uploads/1/3/4/0/134017801/1032243.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379035/normal_5f8d79b1994f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372963/normal_5f8dce06711f3.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0392/6952/files/stamford_elementary_schools_list.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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