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/pify?keyword=seesaw+app+parent+letter In PDF document text

  • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/jovegoxo.pdfIn PDF document text
  • https://bipinutafo.weebly.com/uploads/1/3/4/3/134358532/9507924.pdfIn PDF document text
  • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/mewevimupizove.pdfIn PDF document text
  • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/dunufuresetujaburoz.pdfIn PDF document text
  • https://razesupimo.weebly.com/uploads/1/3/2/8/132815812/buputopipesok-vogagisereri.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368265/normal_5f8cb84e5d27b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377401/normal_5f8fac7daf53a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379837/normal_5f91a4b6742cf.pdfIn PDF document text
  • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/9259492.pdfIn PDF document text
  • https://vodiwisilob.weebly.com/uploads/1/3/2/6/132681054/833409.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386347/normal_5f8d6c2881ef6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369516/normal_5f93493e3453c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404983/normal_5f918f6697637.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006681.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006681.bin)
  • https://s3.amazonaws.com/kavitokolezub/berliner_platz_4_intensivtrainer.pdfIn PDF document text
  • https://s3.amazonaws.com/tuzamada/calendar_2018_marathi.pdfIn PDF document text
  • https://s3.amazonaws.com/fopalew/longman_toefl_practice_test.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 extracted file (font_00_sfnt_off00006681.bin)

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