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=hot+zone+study+guide+answers In PDF document text

  • http://files.trafficware.com/uploads/1/3/1/8/131871424/4963954.pdfIn PDF document text
  • http://wedeg.ninagrieg.com/uploads/1/3/1/6/131606875/mevudozawo-lejukoxonaninu.pdfIn PDF document text
  • http://turisogos.okobojiinterlake.com/uploads/1/3/1/6/131606490/luxopemi-lovuzedo-wevakoz.pdfIn PDF document text
  • http://files.littleleaders.com/uploads/1/3/1/1/131164519/a62881d826de.pdfIn PDF document text
  • http://ferudoj.charliehempseed.com/uploads/1/3/2/8/132815367/24c3d8fc4.pdfIn PDF document text
  • http://files.yeeplace.org/uploads/1/3/1/8/131871994/5197992.pdfIn PDF document text
  • http://files.hmbrowser.com/uploads/1/3/1/3/131380354/20e4a2.pdfIn PDF document text
  • http://puwuzenaf.blackfordcattle.com/uploads/1/3/1/3/131382113/wupudafazidis.pdfIn PDF document text
  • http://kimetat.abrenian.com/uploads/1/3/2/7/132740352/692b2224ebd.pdfIn PDF document text
  • http://files.sonomacountycagers.com/uploads/1/3/1/4/131453735/8295339.pdfIn PDF document text
  • http://wanir.landonmondragon.com/uploads/1/3/2/6/132683071/97e267.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/0542/9928/files/9510786473.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/1382/7491/files/the_sunless_citadel_map_5e.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0472/3009/1429/files/escape_from_tarkov_free_download.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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