Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://jacksth.ru/strik?utm_term=is+magoosh+1000+words+enough+for+gre.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://jacksth.ru/strik?utm_term=is+magoosh+1000+words+enough+for+gre PDF link annotation

  • http://lolkek.xyz/nipenumamupegiw3h9oj.pdfIn PDF document text
  • http://wamuwosola.mygamesonline.org/hepatocellular_carcinoma_adalah.pdfIn PDF document text
  • http://pumba.fun/xufibodakoxv125.pdfIn PDF document text
  • http://nepoxiduvilej.scienceontheweb.net/kinuvisuvosiraxenaji.pdfIn PDF document text
  • http://vivadoctor.ru/chapter_10_capital_budgeting_techniques_solutions573u9.pdfIn PDF document text
  • http://zopokujejisolan.getenjoyment.net/physics_for_class_10_sindh_textbook_board.pdfIn PDF document text
  • http://subakegewoje.sportsontheweb.net/88865217641.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://bogibil.rf.gd/bible_commentary_for_android.pdfIn PDF document text
  • http://xiniwipilanaju.atwebpages.com/letudeturomom.pdfIn PDF document text
  • https://s3.amazonaws.com/fukezavazuj/92131089175.pdfIn PDF document text
  • http://wawefib.rf.gd/common_cognitive_biases.pdfIn PDF document text
  • http://wabalegawamiraj.rf.gd/census_2020_application.pdfIn PDF document text
  • https://s3.amazonaws.com/lazolu/76640376330.pdfIn PDF document text
  • http://guzumirofega.epizy.com/jujowopib.pdfIn PDF document text
  • http://luzigipo.epizy.com/ginokanoze.pdfIn PDF document text
  • http://kujodobiwug.rf.gd/93732120176.pdfIn PDF document text
  • http://vobixet.rf.gd/english_grammar_test_intermediate_level.pdfIn PDF document text
  • http://bibibojusajol.rf.gd/22061905865.pdfIn PDF document text
  • http://nazatolatexom.rf.gd/womixomivoxafupaf.pdfIn PDF document text
  • http://gegavolaful.epizy.com/sudelibewesafojure.pdfIn PDF document text
  • https://s3.amazonaws.com/jowutoneranemuk/cerebellar_infarction_guidelines.pdfIn PDF document text
  • http://nogojituwizax.epizy.com/32585999972.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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