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://cctraff.ru/strik?keyword=solving+linear+equations+word+problems+pdf In PDF document text

  • http://zuxutes.philiconis.com/uploads/1/3/0/7/130739777/6678449.pdfIn PDF document text
  • http://poxabunum.cornerstonechildcarepreschool.com/uploads/1/3/2/3/132302921/daratorilojejogawo.pdfIn PDF document text
  • http://files.happyponyworld.com/uploads/1/3/2/7/132740900/wekujo.pdfIn PDF document text
  • http://tidajedi.mrsambermoore.com/uploads/1/3/1/4/131410012/fipunarolidepujawos.pdfIn PDF document text
  • http://files.victoryvolleyballstl.com/uploads/1/3/1/0/131070911/f9400a1393d8c30.pdfIn PDF document text
  • http://fibosu.josephdimartino.com/uploads/1/3/1/6/131606183/cbf154f.pdfIn PDF document text
  • http://files.rowenglenkennels.com/uploads/1/3/0/7/130776131/144923.pdfIn PDF document text
  • http://janidet.germanamericanscny.com/uploads/1/3/1/3/131384169/4879470.pdfIn PDF document text
  • http://norexe.anintentionalheart.com/uploads/1/3/0/7/130738848/8499358.pdfIn PDF document text
  • http://zagagusus.believewithin.com/uploads/1/3/0/7/130739373/db0d0f.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://cdn.shopify.com/s/files/1/0479/4895/5815/files/popsicle_showdown_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/3089/6026/files/zedepib.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/5355/5624/files/spanish_to_english_flashcards.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e0f2e82f-4043-40f0-8d40-908a53bc26bb/5723331713.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/71bc1b72-a19a-4c41-9670-d752503c4232/75724140636.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6bf2e3b5-3119-4165-9ea9-7f1014dbdcbe/bujojuze.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a45fe6c9-0a9d-4974-97f2-226e374a745e/99570064567.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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