Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://jottigo.ru/award?keyword=ashrae+fundamentals+handbook+1997+pdf+free+download PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4487381/normal_6038b82c4f0a1.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4447884/normal_5ff0eb7457247.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4369525/normal_5fc926d502931.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367903/normal_5fd13b8bd6710.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4407100/normal_60192312e2c82.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4482189/normal_60476bce2f92a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4452612/normal_6032dda8ed0e6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4424376/normal_601f1d1b58a84.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://855e1e5b-0daf-4dce-aa73-dfad2bfec5df.filesusr.com/ugd/ced2dc_dc5a89adf31041799d8b78a17338d41c.pdf?index=trueIn PDF document text
  • https://95049c82-e412-4913-a0b0-e03e83d5170a.filesusr.com/ugd/127d6e_dc61cbfa20d34486a9ddefb6048f7ff1.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/dexodekelaseki/72426039655.pdfIn PDF document text
  • https://aa4c2489-c93b-4667-afab-104bf5323bad.filesusr.com/ugd/8b49c6_23afd48bfdf945369330adfb1e979a5e.pdf?index=trueIn PDF document text
  • https://91506351-5699-48ce-85e7-8e7d071f4e87.filesusr.com/ugd/d775a9_1acf67d7e2b24459b6e56cfe0b8e8a7c.pdf?index=trueIn PDF document text
  • https://bb74f61c-7045-47bf-9a7e-968101ee373e.filesusr.com/ugd/81ef4b_f35e2409fa3c4a43af416bd1e8df3e7c.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/furunumaroxun/laxejakar.pdfIn PDF document text
  • https://a43ab9c2-5efb-4cee-ac06-b782a0f5e207.filesusr.com/ugd/4826f5_274c66400bcf45a18b8fc489c09c53ad.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/selivuvumepaveb/wotuposatugotalita.pdfIn PDF document text
  • https://4a1cfc67-5981-466d-a13b-75576fe7431f.filesusr.com/ugd/64e449_60534cff26174e96b7022f77105d9713.pdf?index=trueIn PDF document text
  • https://bd7a0a6f-bbfd-49cc-ba41-c3f2778102d9.filesusr.com/ugd/9ea91e_2b6abfac19644ae999d0847c085ddce4.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/busutafitufe/crosswords_with_friends_answers_8_31_19.pdfIn PDF document text
  • https://db532842-334f-4efb-8993-e67ec8f20ff5.filesusr.com/ugd/bc5be3_8b03cab293904eb49eb78d2aada058e0.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/zalisujezajaje/55556706173.pdfIn PDF document text
  • https://fc06435f-e709-4c80-b59d-96fa470c1a13.filesusr.com/ugd/bdc04d_6d5e7c7e14a443a1a6365d5da1faf0bd.pdf?index=trueIn PDF document text
  • https://a121017b-3fb3-450c-9156-48dd71a9bf80.filesusr.com/ugd/07625c_c89ca1e492c1463d9471801b75fa327a.pdf?index=trueIn PDF document text
  • https://67258aaf-84c5-4a88-bfd2-1aa7ddb6c27a.filesusr.com/ugd/850f07_78577cdac0a74591aa13e78615ef5464.pdf?index=trueIn PDF document text
  • https://6bc61794-ec17-45f1-96eb-8bed4cd57308.filesusr.com/ugd/217b8a_e705a411c31a426bb73ea2ad0a3792d5.pdf?index=trueIn 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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