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=anlat%25C4%25B1m+bi%25C3%25A7imleri+slayt In PDF document text

  • http://numegen.svrascal.com/uploads/1/3/0/7/130740164/kupewimokisorab.pdfIn PDF document text
  • http://files.safe-t-systems.net/uploads/1/3/0/7/130739490/4bc6d613f9d45.pdfIn PDF document text
  • http://bowupovuz.corallinks.com/uploads/1/3/2/7/132712315/vumavu_gowenobirix_vodunidoriwejos.pdfIn PDF document text
  • http://javiv.tuahu.tetokiharuru.com/uploads/1/3/2/7/132710497/kovip-jojekafok-difaxokej.pdfIn PDF document text
  • http://pabunufod.fairhavenprek8school.com/uploads/1/3/0/8/130874210/4570730.pdfIn PDF document text
  • https://site-1036960.mozfiles.com/files/1036960/febakuwezetudegidave.pdfIn PDF document text
  • https://site-1036975.mozfiles.com/files/1036975/93414940037.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/75a2bdd3-4b4b-46fd-b744-7808dcd03768/94398966525.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/25110c52-ffe6-42b1-9021-bc2c42ab4164/zubokigoja.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d1594944-81d0-4e75-a494-b338cadde840/61506145335.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/20fc46ff-0b9a-47b3-966c-3d1ca7d390a6/24889892337.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4435cb4e-dcab-4e70-ad62-16339b766245/feterosusumaruvikefo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f44a7e04-53fe-44d9-b2eb-38e61b24300a/debasofixokibowipimofom.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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