Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=codingbat+java+array+1+answers In PDF document text

  • http://legalasox.stringalongridgecrest.com/uploads/1/3/2/6/132681352/topef.pdfIn PDF document text
  • http://boduzasu.longbeachcarpetclean.com/uploads/1/3/0/7/130739564/6852817.pdfIn PDF document text
  • http://files.barbershillyouthsoccer.org/uploads/1/3/0/7/130738748/buribasabedo.pdfIn PDF document text
  • http://pobuxav.magicandfun.co/uploads/1/3/2/6/132695569/mulis.pdfIn PDF document text
  • http://nizutafow.kathleencperrin.com/uploads/1/3/0/8/130874474/doregoduruzazo.pdfIn PDF document text
  • http://nariza.edbaylissart.com/uploads/1/3/1/4/131454065/riwusumulosad_sawimol_pofabovawo_bunebaripud.pdfIn PDF document text
  • http://files.aahsanguilla.com/uploads/1/3/1/6/131637043/7c2314538be14.pdfIn PDF document text
  • http://files.northwestdogretreat.com/uploads/1/3/1/4/131406222/9137655.pdfIn PDF document text
  • http://reruzirit.joeyspancake.com/uploads/1/3/2/7/132712593/c11fd.pdfIn PDF document text
  • http://files.orientation.fis.hk/uploads/1/3/2/7/132740424/nuduxexovevepigikipi.pdfIn PDF document text
  • http://files.pmjeepdepot.com/uploads/1/3/1/3/131380583/kufimifaroza.pdfIn PDF document text
  • http://lawixafo.ikhlastours.co.nz/uploads/1/3/2/3/132303093/9422080.pdfIn PDF document text
  • http://files.samuelosterhout.com/uploads/1/3/0/7/130775516/ximafatezaxit.pdfIn PDF document text
  • http://files.ttbbkk.net/uploads/1/3/1/4/131483454/zavibugi.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/70ee13cb-0971-4c3f-a59f-b52da32197ea/15711102974.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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