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://cctraff.ru/wb?keyword=surface%20area%20of%20prisms%20and%20pyramids%20worksheet%20answer%20key In PDF document text

  • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/rebodi.pdfIn PDF document text
  • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/ed77146280debe4.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/mukobuf.pdfIn PDF document text
  • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/f8a30d07b.pdfIn PDF document text
  • https://wugemevafiditi.weebly.com/uploads/1/3/4/3/134382928/todujuvat-merapolujal.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375199/normal_5f8f2e19c0ef0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384036/normal_5f8c87065ddbb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378608/normal_5f8c26cba1402.pdfIn PDF document text
  • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/lizel.pdfIn PDF document text
  • https://jivetigaforivuj.weebly.com/uploads/1/3/4/3/134350389/b9a54f42cd0f8.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/levumoduf/nokilabunuvusapeniwe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f76cca58-a8dd-4d82-9982-f0eb6799a957/woperolokupatukizogu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ba7fd45-f919-4b01-bf1c-2b6ebcadf26d/96199627277.pdfIn PDF document text
  • https://s3.amazonaws.com/degagaziv/bsc_agri_college_in_maharashtra.pdfIn PDF document text
  • https://s3.amazonaws.com/xefejevife/angelika_neuwirth.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/endometritis_treatment.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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