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/strik?keyword=freegate+android+apk+%25D8%25AF%25D8%25A7%25D9%2586%25D9%2584%25D9%2588%25D8%25AF In PDF document text

  • https://site-1038422.mozfiles.com/files/1038422/rizibug.pdfIn PDF document text
  • https://site-1042448.mozfiles.com/files/1042448/70577940802.pdfIn PDF document text
  • https://site-1038612.mozfiles.com/files/1038612/54642167662.pdfIn PDF document text
  • https://site-1043458.mozfiles.com/files/1043458/36150818168.pdfIn PDF document text
  • https://site-1036753.mozfiles.com/files/1036753/20134315053.pdfIn PDF document text
  • http://files.chi-ill.com/uploads/1/3/1/3/131379329/ff20634af1.pdfIn PDF document text
  • http://sexadi.stephentemplin.com/uploads/1/3/0/9/130969205/bb68ed.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/09a20ef3-b455-4ecc-923f-fd797ad163cf/49424112681.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f7e4a418-84ca-4c98-9751-29cfc5c10509/duguvevutewikez.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fe3c402e-4b4c-49f2-bcdd-44c24effda0f/wonebunobetubopijodukulo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0546/8068/files/old_school_15_inch_kicker_cvr.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7049/6661/files/totes_ladies_boot_slippers.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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