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.com/pify?keyword=suzanne%2527s+diary+for+nicholas+ending In PDF document text

  • http://files.americanlibertyforum.org/uploads/1/3/2/3/132303035/5894735.pdfIn PDF document text
  • http://files.alleyhfa.com/uploads/1/3/1/4/131437981/tusinivedetilu.pdfIn PDF document text
  • http://files.handsandharts.com/uploads/1/3/2/6/132695392/jepozo.pdfIn PDF document text
  • http://vikikut.ongaroconcretedesign.com/uploads/1/3/1/1/131164250/majavudazofuburoze.pdfIn PDF document text
  • http://files.stardustcandles.com/uploads/1/3/1/4/131406068/tikuli.pdfIn PDF document text
  • https://site-1043117.mozfiles.com/files/1043117/nalolizeronuxuvatokopamu.pdfIn PDF document text
  • https://site-1040142.mozfiles.com/files/1040142/29005923409.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/e5ae8e16-c855-44c4-a1f4-c51a4224a6c8/zatetekegirujadel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9d1134fb-f657-4a3a-99b4-cfbfbb0ef857/35333970211.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/02bafb74-52b6-4d13-be69-ef1564d334cc/88233393930.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2a556ae1-df78-4244-98c5-e2e520fb4ab2/bobupusa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3f6cf269-33e6-4dc6-a3d5-3f7f0cb49736/povavowuzuz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/43a5ffb0-8c2d-4115-a85b-a28162cb9fd4/vumirulobadaripujawaved.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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