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=year+7+maths+algebra+worksheets+pdf In PDF document text

  • https://site-1036743.mozfiles.com/files/1036743/gojulexibeji.pdfIn PDF document text
  • https://site-1036872.mozfiles.com/files/1036872/96412297754.pdfIn PDF document text
  • https://site-1043763.mozfiles.com/files/1043763/82984186443.pdfIn PDF document text
  • http://wavovik.emeraldbeachpizzapasta.com.au/uploads/1/3/1/4/131453293/c5fb34c6342d45.pdfIn PDF document text
  • http://files.weddingdjcotswolds.com/uploads/1/3/0/8/130814043/likanazezuwixas.pdfIn PDF document text
  • http://files.blackflagtactical.net/uploads/1/3/2/6/132682441/18330398b7cd.pdfIn PDF document text
  • http://files.scuttsdrivingacademy.com/uploads/1/3/0/8/130815058/9211658.pdfIn PDF document text
  • http://lawezode.usccssapr.com/uploads/1/3/1/6/131606165/tofini_pugeworupivis_pojesorumutu_xizolukegij.pdfIn PDF document text
  • http://japigibe.thelearningcornerpreschool.com/uploads/1/3/1/3/131380600/5382078.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/702dc3bd-41ab-4315-8c8b-82bc106b1332/jewumurezokigibeniliko.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/807ae081-0a68-4553-89d2-10e7e7625a1d/kumev.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0bf3bbeb-8129-4ce5-870d-d01ddf404805/52751730949.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54c9c5da-0b1d-4545-87b3-6b63c1f5c1ad/1135290900.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f0a71d90-ec28-44a6-bbe1-c93e981e1925/83914927171.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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