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://zajinet.ru/strik?utm_term=ng-book+9+pdf+download PDF link annotation

  • https://cdn.sqhk.co/doxelatofon/alB1X4L/niluwumunoleperedes.pdfIn PDF document text
  • http://zefujixa.mywebcommunity.org/28757599278.pdfIn PDF document text
  • http://nuwevabufa.mypressonline.com/nucleophilic_substitution_and_elimination_reactions.pdfIn PDF document text
  • https://cdn.sqhk.co/serojimo/hhihfhh/xakaxabevagagapoluwurobu.pdfIn PDF document text
  • https://cdn.sqhk.co/xotosira/hjdgdhg/85512055365.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380545/normal_6028a5eb25828.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4374196/normal_5fc889ade73d2.pdfIn PDF document text
  • http://lowusonuraku.mygamesonline.org/herbs_and_spices_uses.pdfIn PDF document text
  • http://gaxenop.medianewsonline.com/adobe_photoshop_cs6_tutorial_intermediate.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4379970/normal_5fc97bc7b3770.pdfIn PDF document text
  • http://pojapir.mygamesonline.org/simplesmente_acontece_baixar.pdfIn PDF document text
  • http://ripugusulufiluj.getenjoyment.net/electrical_telemetry_system.pdfIn PDF document text
  • https://cdn.sqhk.co/fegadosijete/ZjdggZf/xinipixuxidoxesavijalej.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://03df18d0-0a94-4077-8b44-1f3cf8b7c870.filesusr.com/ugd/23a6c3_371041f07a2f47faa80c5d255c2c6d58.pdf?index=trueIn PDF document text
  • http://vefodipox.myartsonline.com/tifalofi.pdfIn PDF document text
  • https://8eb0ff2f-1b5f-41fb-a82b-bf279dc7f43e.filesusr.com/ugd/868f76_e3fc564415f048f6a79ad70e7c940d09.pdf?index=trueIn PDF document text
  • https://eee5dff6-7331-416e-acdf-593d0c386862.filesusr.com/ugd/21e9e0_f5686a7a61104147b48e2b9b2e6bfb16.pdf?index=trueIn PDF document text
  • http://nimanexobubibub.onlinewebshop.net/bse_odisha_9th_class_book_download.pdfIn PDF document text
  • https://def05634-b969-4265-beeb-1e7d695e9a44.filesusr.com/ugd/6865ce_c539ca733e054491890c71968b717ce5.pdf?index=trueIn PDF document text
  • https://dfdccaec-9019-42eb-ab8c-14eed22d5f88.filesusr.com/ugd/2e00cc_2687ec881acb436f97beb8ed7e2f553b.pdf?index=trueIn PDF document text
  • https://80172413-d145-4b71-b7cf-4a007d76ad29.filesusr.com/ugd/cacfd7_95884c4c79a442cd84f80cbdf49f7add.pdf?index=trueIn PDF document text
  • https://9a60fab3-6fb0-4be7-9305-b2e3cc44d963.filesusr.com/ugd/811c4f_37bfd37a6e724a7abd64ea72d9a836ab.pdf?index=trueIn PDF document text
  • https://acda325f-ee3b-40e4-882f-fabc489a6840.filesusr.com/ugd/23b3d3_c1d52a192bb6449cb8d56ba64830c560.pdf?index=trueIn PDF document text
  • https://f18b8dc1-3ce9-44bd-8712-01435d039869.filesusr.com/ugd/b97cba_41d0befb02e2455bb2bb724fbd936d4a.pdf?index=trueIn PDF document text
  • https://5c06e36d-e6a7-492f-989e-88f86e9ca1b1.filesusr.com/ugd/c9ae65_3de2ec0d526b4548bbeef21f7937cb25.pdf?index=trueIn PDF document text
  • http://nisetekotixob.myartsonline.com/58156549425.pdfIn PDF document text
  • http://vifidumefitur.atwebpages.com/gda_building_bye_laws.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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