Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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/pify?keyword=vairamuthu+books+pdf+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367644/normal_5f8749958816c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365635/normal_5f8704b59cd1a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365546/normal_5f8713bfc2464.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366364/normal_5f870f86983a0.pdfIn PDF document text
  • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/aa92d.pdfIn PDF document text
  • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/3722212.pdfIn PDF document text
  • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/6ec94.pdfIn PDF document text
  • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/sabaro.pdfIn PDF document text
  • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/3909426.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367302/normal_5f8744ea2806d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365626/normal_5f86f4125bfc5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366384/normal_5f8717845d1dc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365549/normal_5f86f4529e088.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365620/normal_5f872e4751665.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365607/normal_5f871ba3e3e93.pdfIn PDF document text
  • https://site-1041937.mozfiles.com/files/1041937/xiwapodokowigeze.pdfIn PDF document text
  • https://site-1038427.mozfiles.com/files/1038427/63682158853.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/1df3ea54-c10f-488d-ace3-6003dbe9d990/44001185408.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3716dc3d-68f9-4cbd-8bf5-08b94daed35e/mozatobufemedewoxus.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7d90fec9-a2c9-4431-b814-f6a72a490a6e/zoperitusotir.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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