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/strik?keyword=berichtsheft+mfa+bayern+pdf In PDF document text

  • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/tuxajolojedebu.pdfIn PDF document text
  • https://ruxodinari.weebly.com/uploads/1/3/4/3/134377607/tonumuvoriviwewajow.pdfIn PDF document text
  • https://naxupezo.weebly.com/uploads/1/3/4/3/134350891/a879fc4cb2703c.pdfIn PDF document text
  • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/2850776.pdfIn PDF document text
  • https://mivosubewo.weebly.com/uploads/1/3/1/4/131407796/4657334.pdfIn PDF document text
  • https://worozimovazez.weebly.com/uploads/1/3/1/4/131406108/zepepenofoneduxeka.pdfIn PDF document text
  • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/8c3f11ed.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366661/normal_5f886a6e50dc4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391634/normal_5f904a1f69ef9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388271/normal_5f9113ce644e5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366367/normal_5f8c847869b45.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367311/normal_5f88256855cb6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365552/normal_5f8ed8be13e13.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00008300.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00008300.bin)
  • https://uploads.strikinglycdn.com/files/3f59a2a3-25eb-40bc-860c-6b7e47bc065c/ativador_windows_7_mega.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/48c76cc0-2026-4400-aa47-4d7f6c9de2d1/wavimajaluxa.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
  • https://savannah.gnu.org/projects/freefont/In extracted file (font_00_sfnt_off000072f9.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off000072f9.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off000072f9.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off00008300.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_03_sfnt_off0000bb08.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_03_sfnt_off0000bb08.bin)

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