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://ttraff.link/pify?keyword=nelson+grade+8+science+textbook+pdf+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366043/normal_5f878106b43aa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369166/normal_5f879a64ceb32.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367914/normal_5f87a21cea66e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366622/normal_5f878b2402bc1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366321/normal_5f87351191f1a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366036/normal_5f870a402bddb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366022/normal_5f873a109d4a3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369315/normal_5f87f1e9eedfb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367297/normal_5f879add38ab4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365635/normal_5f87e54f32d78.pdfIn PDF document text
  • https://site-1041301.mozfiles.com/files/1041301/tudidopetog.pdfIn PDF document text
  • https://site-1039931.mozfiles.com/files/1039931/45255227539.pdfIn PDF document text
  • https://site-1037149.mozfiles.com/files/1037149/giseb.pdfIn PDF document text
  • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/8869537.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/aa94aa7f99c.pdfIn PDF document text
  • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/ligewajinaxi.pdfIn PDF document text
  • https://kuwofepex.weebly.com/uploads/1/3/2/7/132740654/5631532.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/1d677429-dad6-41f7-8e84-3b796e132e24/7580301618.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d136c6b3-0c48-47c4-bf10-9a05663b95a6/10266485319.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/acfc96de-47f3-4027-9012-4e52bab34d4b/8879492553.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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