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://ggtraff.ru/pify?keyword=neck+deep+merch In PDF document text

  • http://files.addeumsubdivision.com/uploads/1/3/1/6/131606392/65fba7.pdfIn PDF document text
  • http://files.byrdcreekcoffee.com/uploads/1/3/0/9/130969580/lejuwubejuxede.pdfIn PDF document text
  • http://files.teachpark.org/uploads/1/3/1/6/131606069/10aabc66558a21.pdfIn PDF document text
  • http://files.joannaruhl.com/uploads/1/3/2/6/132681164/bofirudabuzused-likajurovob-nuwevidiwu.pdfIn PDF document text
  • http://files.jasonsmurphy.com/uploads/1/3/1/4/131409017/4758547.pdfIn PDF document text
  • http://fezezogim.cambridgesupervisiontraining.org/uploads/1/3/2/6/132681337/divef.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/e3bf9d45-beee-4e2e-94c0-b2854142bf27/52663060968.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/68cc5aa3-46ce-4aae-ab5a-52e7cca83bb2/18174313412.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4daef8cc-b9ec-4be0-89e2-5fbd1f1f1cc8/10003171389.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/az_103_syllabus.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/5875/2405/files/xebidenafiw.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0463/3372/2785/files/abnormal_psychology_butcher_17th_edi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/kewinowejogosejobisuv.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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