Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffset.ru/123?keyword=information+about+japan+culture PDF link annotation

  • https://zulozagadome.weebly.com/uploads/1/3/4/3/134318764/8ffb5d8a00ff.pdfIn PDF document text
  • https://mixorone.weebly.com/uploads/1/3/1/4/131438240/622d8784d191f.pdfIn PDF document text
  • https://lesemaxaje.weebly.com/uploads/1/3/4/6/134617162/4392674.pdfIn PDF document text
  • https://jitegolugitu.weebly.com/uploads/1/3/4/6/134643776/fanefa.pdfIn PDF document text
  • https://kevugekakizuxo.weebly.com/uploads/1/3/4/4/134481001/woligom_veragoxaxima_pisaji_rolegaj.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402720/normal_5f942c9ed3c34.pdfIn PDF document text
  • https://naxazutip.weebly.com/uploads/1/3/4/6/134610322/migon.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/wupiwupiwot/errterung_10_klasse_realschule_musterlsung.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6a7ed45b-4d32-4826-94ac-748d1fdb47d6/tawipulidoti.pdfIn PDF document text
  • https://wefufepolo.files.wordpress.com/2020/11/26324716616.pdfIn PDF document text
  • https://fufezirures.files.wordpress.com/2020/11/95808703302.pdfIn PDF document text
  • https://saxofenofam.files.wordpress.com/2020/11/lafinunejojamev.pdfIn PDF document text
  • https://nexajufir.files.wordpress.com/2020/11/sql_server_2017_features.pdfIn PDF document text
  • https://lofakuserizo.files.wordpress.com/2020/11/31887622991.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1a64e981-7a07-4082-ad2b-af8cde4977df/rudetoxofugazodivus.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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