Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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 http://musthighschool.mn/ckfinder/userfiles/files/bifebojiwasovexipo.pdf In PDF document text

  • https://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/jugis.pdfIn PDF document text
  • http://originalcheck.it/public/img_admin/file///61955803396.pdfIn PDF document text
  • http://romangruszecki.com/uploaded/file/kidesupupejowokipoguwopu.pdfIn PDF document text
  • http://greenworx.eu/images/uploads/files/jefafezigidalukubovexi.pdfIn PDF document text
  • http://industrialdevices.in/uploads/81339068202.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16119c9a74cc2a---50950702126.pdfIn PDF document text
  • https://mannerfeltdesignteam.se/ckfinder/userfiles/files/bujajipebusuratutix.pdfIn PDF document text
  • http://hz-karavany.cz/ckfinder/userfiles/files/luturitujixiwoxurazuwuvo.pdfIn PDF document text
  • https://cgeminfos.ma/upload/file/29041629828.pdfIn PDF document text
  • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c1df5d37c---nelanezokigiturusonob.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160aa6a10e7e80---duwiwogawivunewofonomi.pdfIn PDF document text
  • http://farmina.ru/uploads/files/35148512595.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e095fe9d6c5---gujigofoluj.pdfIn PDF document text
  • http://fli.edu.mn/ckfinder/userfiles/files/59692404582.pdfIn PDF document text
  • http://sk-massimo.com/js/upload/files/madagojudaradeferukabas.pdfIn PDF document text
  • https://ferado.vn/userfiles/file/tapanodejefijoson.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ac89d654fde---dabilixexomerezobujadul.pdfIn PDF document text
  • http://ceresasrl.it/userfiles/files/wotakikifasusudevovajipoj.pdfIn PDF document text
  • http://zatexpress.com/upload/userfiles/files/viraxixan.pdfIn PDF document text
  • https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/acn6udagirpq00nekmti3pq1jo/lunabagomuk.pdfIn PDF document text
  • http://xn--l3cbpp3gh4a5g5c.com/userfiles/files/xiliziramowibetefe.pdfIn PDF document text
  • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/0c3adab64b169be48e627e2e10ad4733/71034248400.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=sound+forge+7+serial+number+keygenPDF link annotation
  • 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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