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.cc/wix?keyword=cinnamon+cat+deterrent In PDF document text

  • http://xuzasol.yatingchuang.com/uploads/1/3/0/7/130739789/230a00fa96.pdfIn PDF document text
  • http://files.leandromorgado.com/uploads/1/3/2/6/132696351/59d39.pdfIn PDF document text
  • http://files.hloc.org/uploads/1/3/1/6/131608016/penemutibiji.pdfIn PDF document text
  • http://letak.andreagammon.com/uploads/1/3/1/8/131856456/fulisomupuke.pdfIn PDF document text
  • http://jurolasi.cyprusweddingtouches.com/uploads/1/3/0/7/130739197/9145613.pdfIn PDF document text
  • http://files.qvccmanagement.com/uploads/1/3/0/8/130813732/wogilut.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://06dabcff-d936-480e-984b-155ddaa57349.filesusr.com/ugd/9cfd0a_e6455b2ed10e4918a6a398b4a1ac0018.pdf?index=trueIn PDF document text
  • https://2e9412aa-e272-447a-b1d4-1cfd59af203f.filesusr.com/ugd/24deb6_c240d352066d45a08f4bab19d3fce481.pdf?index=trueIn PDF document text
  • https://36e39e2e-fbe3-4ad1-8e9c-4e025b823890.filesusr.com/ugd/98e2de_3e8c19e6a5ba49f08805681e2566ae62.pdf?index=trueIn PDF document text
  • https://c65c624a-75f5-4b2a-8459-3d51580eb159.filesusr.com/ugd/2486b5_24ad98a3d52c4f89a8c08baf8035405b.pdf?index=trueIn PDF document text
  • https://e50dfd05-5804-4359-9b17-c3df827ec2a7.filesusr.com/ugd/3ed902_9ab5e697580b4ee18166cf2450e345aa.pdf?index=trueIn PDF document text
  • https://6e39d444-2d9e-4dd6-ac80-13def0916faa.filesusr.com/ugd/3ed902_160072044b6244adb92f7305fc7d68b0.pdf?index=trueIn 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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