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=us+history+2+final+exam+study+guide In PDF document text

  • http://julebalop.myforeveryounghair.com/uploads/1/3/1/4/131453247/tapigilo.pdfIn PDF document text
  • http://ruremufox.hillvalleyfarmdairygoats.com/uploads/1/3/0/8/130814124/230571.pdfIn PDF document text
  • http://bujuxum.fazzersports.com/uploads/1/3/1/4/131406453/xefupupetuwarikodu.pdfIn PDF document text
  • http://rejobixon.nyharbornature.com/uploads/1/3/1/6/131637131/vuvizakusunukok-nelebeb-mijotujo-dutowebiruji.pdfIn PDF document text
  • http://files.evilsizor.co/uploads/1/3/0/7/130775701/713262.pdfIn PDF document text
  • http://files.fumelectra.com/uploads/1/3/1/3/131398008/xipejuluzonimixe.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://b71a8beb-531a-47e1-a3ca-15c6bfe1eca5.filesusr.com/ugd/ceb2e8_b3265c16dae5416e9fcd4861e6b5afbc.pdf?index=trueIn PDF document text
  • https://faf5511f-5c56-4c24-acbd-cf7f3703a7c7.filesusr.com/ugd/b73feb_3f9b21e00dee4e6891a97186b8c3568c.pdf?index=trueIn PDF document text
  • https://ca390ab9-236a-4779-b9b1-55054fd110b8.filesusr.com/ugd/c70c35_eedac6d83eb148deae8f389935fc6be6.pdf?index=trueIn PDF document text
  • https://2d191c9f-c1dc-42fa-b61c-92d60403dda4.filesusr.com/ugd/3db607_b1871ed1d66d46868b1a8636f629daaf.pdf?index=trueIn PDF document text
  • https://7dceed6f-e97c-4f4d-b49a-1e9494b131e3.filesusr.com/ugd/dba42a_72d57e31ce974e5884056b67e63357b3.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://scripts.sil.org/OFLIn PDF document text

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