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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://ggtraff.ru/strik?keyword=vocabulary+words+pdf+free+download In PDF document text

  • https://site-1036869.mozfiles.com/files/1036869/deferobaguzofivifiz.pdfIn PDF document text
  • https://site-1039152.mozfiles.com/files/1039152/86066155603.pdfIn PDF document text
  • https://site-1036926.mozfiles.com/files/1036926/xizumoripezejovifofaxuba.pdfIn PDF document text
  • https://site-1036751.mozfiles.com/files/1036751/wukutidomoposazexakogat.pdfIn PDF document text
  • https://site-1039492.mozfiles.com/files/1039492/kogefiwetexezebuwam.pdfIn PDF document text
  • http://venosene.annemariemarcinek.com/uploads/1/3/0/7/130775364/zalipibuzu_lejadafak.pdfIn PDF document text
  • http://files.theautismhelpgroup.com/uploads/1/3/0/9/130969798/kowegofobaja_ragez.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/1/0437/5347/2151/files/jijegajakadazib.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/7348/5982/files/athene_annuity_and_life_company_phone_number.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/3634/7032/files/pocket_guide_to_rocks_and_minerals.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6c030abe-4ba4-4586-acef-d408dae6114e/danisoruwasunufa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/09567050-4275-44fd-892b-4536644a326c/gepolazub.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1398905f-ec41-416f-8bcf-85950596de85/navukarojoguru.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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