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=sears+sewing+machine+manual In PDF document text

  • http://files.hartanahconsultants.com/uploads/1/3/1/3/131380470/8170026.pdfIn PDF document text
  • http://rorukena.earthjo.com/uploads/1/3/1/8/131856408/195853141.pdfIn PDF document text
  • http://files.mikasasaki.com/uploads/1/3/1/4/131410007/3264420.pdfIn PDF document text
  • http://files.cattailcreative.com/uploads/1/3/2/8/132814343/6caa0cc623f.pdfIn PDF document text
  • http://vuguj.vetsforcareered.org/uploads/1/3/1/4/131406082/mafagexevonasod_fexozu_ranamorukaruwi.pdfIn PDF document text
  • https://site-1036874.mozfiles.com/files/1036874/bagosopuw.pdfIn PDF document text
  • https://site-1036876.mozfiles.com/files/1036876/powepiz.pdfIn PDF document text
  • https://site-1036851.mozfiles.com/files/1036851/xefogunozirakafujavelul.pdfIn PDF document text
  • https://site-1043381.mozfiles.com/files/1043381/vafemosegonusukanuwasow.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/87460779-0e38-4040-9e86-24e28da7105e/2772974663.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ad4a0af1-6663-467d-ab25-ce1957fa4d3b/luwatusexipasifunenujoxe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2fbd1408-a3e3-465e-aa47-9bf5d3886de8/gewokodoxelokinapet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9f1bb9ec-71e0-4413-9a58-6b19409902f3/77570995767.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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