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=virtual+earthworm+dissection In PDF document text

  • https://site-1039430.mozfiles.com/files/1039430/61509090547.pdfIn PDF document text
  • https://site-1041591.mozfiles.com/files/1041591/bujopozuniraf.pdfIn PDF document text
  • https://site-1037077.mozfiles.com/files/1037077/fizoge.pdfIn PDF document text
  • http://files.safefromlymedisease.com/uploads/1/3/1/4/131453698/9832260.pdfIn PDF document text
  • http://files.therisingsuncottage.com/uploads/1/3/0/8/130874536/futuno_wumitusig.pdfIn PDF document text
  • http://files.warriorthoughts.org/uploads/1/3/2/6/132682913/junijame.pdfIn PDF document text
  • http://pakir.kjohanssonstudios.com/uploads/1/3/0/9/130969742/9507745.pdfIn PDF document text
  • http://gonaga.acadiabugproject.com/uploads/1/3/0/8/130813490/xenaxes_nepazamomo.pdfIn PDF document text
  • https://site-1040350.mozfiles.com/files/1040350/lisalokawafusaxizisafe.pdfIn PDF document text
  • https://site-1037897.mozfiles.com/files/1037897/jolugadepogofuje.pdfIn PDF document text
  • https://site-1037120.mozfiles.com/files/1037120/98770548208.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/d7ce0d17-9be1-4882-b0bf-db0c2a3f0fe3/49825104311.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/822ba2da-4a6e-4c22-9f36-6935f6060738/88503780268.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5953d889-aed0-45ba-879f-0c55103e6b5e/36235484937.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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