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
• 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 https://irlanc.ru/uplcv?utm_term=audio+evolution+mobile+studio+for+pc PDF link annotation

  • http://ck-buhgalter.ru/userfiles/file/4944286918.pdfIn PDF document text
  • http://worldwidestationeryholdings.com/files/file/53599764223.pdfIn PDF document text
  • http://m-camper.ru/ckfinder/userfiles/files/larenaxutibobizub.pdfIn PDF document text
  • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16131523f6e467---gupunuzuvusiwij.pdfIn PDF document text
  • http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/1025ee602c21008225094666ea90b31e/81800376665.pdfIn PDF document text
  • https://natanashoes.com/kingkong/userfiles/files/88012632141.pdfIn PDF document text
  • https://euroroma-bg.org/files/file/13520352276.pdfIn PDF document text
  • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/161366c4917443---43068696716.pdfIn PDF document text
  • http://uro-medical.pl/zdjecia/fotki/file/56858911288.pdfIn PDF document text
  • http://kurumakaitori-one.com/js/upload/files/70317045726.pdfIn PDF document text
  • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b3089a3db6---27854191321.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/38084806466.pdfIn PDF document text
  • https://ratosatu.com/contents/files/440837256.pdfIn PDF document text
  • https://topconta.ro/userfiles/file/33265582506.pdfIn PDF document text
  • https://lighthousemacau.com/html_upload/file/86999671958.pdfIn PDF document text
  • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f313a2b7b5---52055090172.pdfIn PDF document text
  • http://msslink.ru/userfiles/files/25220933316.pdfIn PDF document text
  • https://banerjeetourspecial.in/ckfinder/userfiles/files/gogamirabiforisolenuteral.pdfIn PDF document text
  • http://www.pzkexie.com/up_files/file/ranubabu.pdfIn PDF document text
  • http://clinivetmadonnadirosa.eu/userfiles/files/39144606152.pdfIn PDF document text
  • https://luatsuavina.com/userfiles/file/4464809799.pdfIn PDF document text
  • http://struttur-arch.it/userfiles/files/11406993840.pdfIn PDF document text
  • http://dh-life.com/ckfinder/userfiles/files/fedefebo.pdfIn PDF document text
  • https://al-wesam.com/userfiles/files/genafeser.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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