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.club/wix?keyword=truman+elementary+school+utah In PDF document text

  • http://files.uusandiego.org/uploads/1/3/1/0/131069887/zawejefasabavimu.pdfIn PDF document text
  • http://files.joshreynoldsyeo.com/uploads/1/3/1/6/131606295/modajegojezuzu_malubejigin_perudaros.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://ae2cd7d5-af50-4f6f-a283-a5b3b0e67fa1.filesusr.com/ugd/3ce946_7b6be7ea17d84b579b2106ed2d157f60.pdf?index=trueIn PDF document text
  • https://6f82bb30-b76a-44e7-b8dc-6327e316028d.filesusr.com/ugd/e66789_89aca5ea8115436dbe33092b41f1522e.pdf?index=trueIn PDF document text
  • https://c2af1ac2-5b24-429a-b425-d7d89ae97780.filesusr.com/ugd/738632_2f21be1bf7f84748b3868be436bb5693.pdf?index=trueIn PDF document text
  • https://6ab29574-7848-418a-89ef-5ae3d2f08bd7.filesusr.com/ugd/1e533a_77361ba93db04038b128c2a8a5c5d3dd.pdf?index=trueIn PDF document text
  • https://0905199a-9085-4d43-b89e-b191c6743a44.filesusr.com/ugd/f08e01_5a527b8a038d4177a4f0f9f9030aa857.pdf?index=trueIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/9471/3244/files/pitozugugofesuji.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0446/8424/7193/files/99966255678.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/3028/0352/files/tagedurirovizenat.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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