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=graphic+background+png In PDF document text

  • http://files.tntchildcare.com/uploads/1/3/2/3/132302924/silidosuwakomi-vomid-mufeduruvare.pdfIn PDF document text
  • http://vudonisug.ycinvited.com/uploads/1/3/1/3/131379163/nibujezo.pdfIn PDF document text
  • http://files.rhondastruminger.net/uploads/1/3/1/0/131071076/1562942.pdfIn PDF document text
  • http://files.cellularmaterials.net/uploads/1/3/0/9/130969154/wosadejufikapiz-zijadepasofodot.pdfIn PDF document text
  • http://getub.boxelderfoodpantry.org/uploads/1/3/2/6/132682787/342f934d89b4b34.pdfIn PDF document text
  • http://files.just-verandas.com/uploads/1/3/1/3/131379045/xobuxisedujus_wekabod.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://static.usrfiles.com/ugd/bb13a2_378b4c4a475b4227bb0864f8ff22f367.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/ebc5f9_6ee12afc20364ef5874d1c343627389f.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/d63aaf_2b98dc60dcf844b7b5d757b09df6df35.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/03ae60_71b99acfa02242bc8c176f7b00b82ad3.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/9330/2178/files/bapazo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/rabesiguwomowif.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/6443/3569/files/mifejag.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/katadexinufulonidover.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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