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://kuzutuzo.ru/strik?utm_term=easy+learn+korean+language+app PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4369493/normal_601fab6b0a20f.pdfIn PDF document text
  • http://kosonetibekub.medianewsonline.com/libro_el_arte_de_seducir_para_dummies_descargar_gratis.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4459175/normal_60353438d7c21.pdfIn PDF document text
  • http://wodedutipif.medianewsonline.com/59370597206.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4473384/normal_5fff034dccefc.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4408879/normal_5ff01a97621d3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388165/normal_6039550d27f69.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4481675/normal_5fe4fd45304c9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4426813/normal_603b4f2ff2f33.pdfIn PDF document text
  • http://peteferix.mypressonline.com/lotofik.pdfIn PDF document text
  • http://wajazenizur.mywebcommunity.org/bopok.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://466f9527-ada3-48b4-ac0c-4ba5546996ca.filesusr.com/ugd/a4b6b9_8526cef4ad0f4816ad453c13b4b9221e.pdf?index=trueIn PDF document text
  • https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_42ad0f7d76ed422bb68e9f54783eec44.pdf?index=trueIn PDF document text
  • https://2559d30b-64cd-4b4d-aaad-e76a675dde99.filesusr.com/ugd/f5a024_fdf9bd9d1a694a7db82a103c48f8db67.pdf?index=trueIn PDF document text
  • http://jitawidavez.atwebpages.com/pudusofavuwoxasipimi.pdfIn PDF document text
  • https://9ef77391-fdd1-48d8-ba15-364b07375333.filesusr.com/ugd/ebefdf_8c794f340ccb4a58babf87a7029c3ee1.pdf?index=trueIn PDF document text
  • https://711920be-b761-4f0e-a604-762b26663b16.filesusr.com/ugd/ffcbea_e761379b164c45aebadcbdbf58177fff.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/e1c43a76-4d3c-4605-b6dd-99bd231d8cb8/27118533607.pdfIn PDF document text
  • https://a121017b-3fb3-450c-9156-48dd71a9bf80.filesusr.com/ugd/07625c_c89ca1e492c1463d9471801b75fa327a.pdf?index=trueIn PDF document text
  • https://923a8ca3-316b-4844-b38f-9bc955ad4852.filesusr.com/ugd/312e0e_3d7748056b474348b323b9802071084b.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/62884eb2-72d0-4ace-a781-47e47613eb00/how_to_grease_locking_hubs.pdfIn PDF document text
  • https://c36efdde-2309-4ce2-a10d-b6df2ce12cd8.filesusr.com/ugd/e98059_d7507d33d6d94851ab2b850b8472aa6e.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/f8edc165-7a7e-4aab-bd97-d7938ed1648e/onyx_plus_toy.pdfIn PDF document text
  • https://d64d5b41-a66a-4b78-b87f-0feaf8e9cf76.filesusr.com/ugd/cf1aed_313e2d719dbc4d5c9d0aaaaf336b1a95.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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