Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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=lecturas+de+comprension+lectora+con+preguntas+para+ni%25C3%25B1os+de+primer+grado In PDF document text

  • http://files.lindsaykomar.com/uploads/1/3/2/8/132814286/23b09667f1e6.pdfIn PDF document text
  • http://musiwef.kingswoodms.org/uploads/1/3/1/4/131455543/2052580.pdfIn PDF document text
  • http://nisoku.cwl-asheville.org/uploads/1/3/2/3/132302966/95d8aa5cc7cc8.pdfIn PDF document text
  • http://files.twisterchasers.com/uploads/1/3/1/4/131453431/4b8b697f179a805.pdfIn PDF document text
  • http://files.cedarvalleywalleyeclub.org/uploads/1/3/1/3/131381658/9998102.pdfIn PDF document text
  • http://files.baltimorespa.net/uploads/1/3/0/7/130739503/tifizizepisadesarevu.pdfIn PDF document text
  • http://files.tampabayplasticsurgery.net/uploads/1/3/2/7/132741181/f36b3a8d625eb8.pdfIn PDF document text
  • http://lajuk.somersetbrewers.com/uploads/1/3/1/6/131637649/a467610999a.pdfIn PDF document text
  • http://files.trimleystmartinprimaryschool.com/uploads/1/3/0/7/130776043/6788055.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/61d3f3c9-f0a9-4f61-9677-0e18458e1fb1/63052454123.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7ead18b3-98be-4152-93c3-9307c9e7248e/fapolutekazuwitopon.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/97ad258b-63c3-448e-a918-efe25575d5af/99511579044.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/45b0ec4d-a96a-4c36-9067-ce5b30941879/19902332815.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/6238/6074/files/jujebavatepasivawuzorud.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/9531/7403/files/el_poder_del_pensamiento_positivo_norman_vincent.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/4710/3897/files/4436796138.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/44181072469.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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