Malicious PDF — malware analysis report

Heuristics 4

• 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 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://ggtraff.ru/pify?keyword=hamlet+act+4+study+guide In PDF document text

  • http://files.heartsonnoses.com/uploads/1/3/0/8/130873769/481181d9.pdfIn PDF document text
  • http://files.davisdeckandfence.com/uploads/1/3/0/7/130739475/4155213.pdfIn PDF document text
  • http://nized.dklewis.net/uploads/1/3/0/8/130813108/14f11820e86b9bb.pdfIn PDF document text
  • http://files.pilgrim-medj.com/uploads/1/3/1/8/131856234/8369a3ef.pdfIn PDF document text
  • http://tupevida.lindbergdesigns.com/uploads/1/3/1/6/131607131/vakixal-renife-sozabalibadawo-wutuzosole.pdfIn PDF document text
  • http://files.osukappaphilambda.org/uploads/1/3/1/8/131871622/87783d83b3a1b.pdfIn PDF document text
  • http://files.crichardking.com/uploads/1/3/2/6/132681396/9643275.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/64594040-6d4b-42b5-9b8f-cc63668eae02/54768459178.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e44b0d5-7587-4389-84be-d53d2962852a/1457671286.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c7adf600-a794-4e89-b816-8b551cd43962/zulorulage.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/822bd3df-4b1c-4b91-981f-5eb6104ea805/sagilunepanuvigenitupu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5cede7e6-2c64-4b3d-b43f-925a289ac181/sivax.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/324872a3-ce8a-4b51-970b-5ee01599c3e4/gemefukuwiwerugu.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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