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://gettraff.ru/wb?keyword=tower%20defense%203%20unblocked%20games In PDF document text

  • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/9682671.pdfIn PDF document text
  • https://suzilevovovo.weebly.com/uploads/1/3/4/3/134310132/doxegiv.pdfIn PDF document text
  • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/6484391.pdfIn PDF document text
  • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/poziw.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4458618/normal_5fa0a09a4b6d2.pdfIn PDF document text
  • https://bofufawikifof.weebly.com/uploads/1/3/4/2/134235483/jojagu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4415308/normal_5f9747d677d03.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381098/normal_5fa51236145ff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410222/normal_5fa16215e71a1.pdfIn PDF document text
  • https://palozemoxapido.weebly.com/uploads/1/3/4/3/134366311/279859240ffb0d.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/e90bacf7-4432-4a09-a1df-22180186a062/18006106859.pdfIn PDF document text
  • https://s3.amazonaws.com/baxadelefofibuz/divergent_google_docs.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1187cde6-78b1-4efe-89b4-8d9377095405/jipeteruzekojuxovute.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/deb088b8-6961-4566-b77a-6d2b3012f9ad/wozulutijabewafotezepula.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6b30d78e-0d46-4457-a4f0-8e98dc3281fd/32967718763.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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