Malicious PDF — malware analysis report

Heuristics 6

• 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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=qu%25C3%25A9+era+la+causa+de+muerte+de+james In PDF document text

  • http://tinisage.serialrunner.com/uploads/1/3/0/7/130738511/pewisavow.pdfIn PDF document text
  • http://kavoga.cheytalks.com/uploads/1/3/0/7/130740572/powukosogojenonoxom.pdfIn PDF document text
  • http://jizokoni.jpknightsmovie.com/uploads/1/3/0/9/130969808/xosapalemajelu.pdfIn PDF document text
  • http://files.cliftonmcfate.com/uploads/1/3/2/7/132712315/7948829.pdfIn PDF document text
  • http://files.engagingnh.org/uploads/1/3/1/4/131406798/gatep-tasokegar-mosekudubi.pdfIn PDF document text
  • http://xewexog.educationalpsychologisttherapy.com/uploads/1/3/0/8/130813364/9f0456e1a46d.pdfIn PDF document text
  • http://dawodopi.lynn-gustafson.com/uploads/1/3/0/7/130738799/2bba4ffeb2e217.pdfIn PDF document text
  • http://files.carpenterartist.com/uploads/1/3/1/1/131164479/6135072.pdfIn PDF document text
  • http://rodid.myhaydenisland.com/uploads/1/3/0/7/130776208/vunugu_kelarurekito_zapokuvavofato_poboxolapi.pdfIn PDF document text
  • http://juzifugul.applelenses.com/uploads/1/3/1/4/131453109/munavomisegulilox.pdfIn PDF document text
  • http://files.overzealous.ca/uploads/1/3/2/7/132740204/1806677.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/6f97bb9f-98d2-43e1-b72a-8f9e83a9135e/26631446303.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cb5b0696-07bd-4339-bd9c-a6bb48caa81f/49508082916.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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