Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://capmar.eu/userfiles/file/kiwogunikufa.pdf In PDF document text

  • http://derkwoo.com/upload/editor/files/wifujumidosero.pdfIn PDF document text
  • http://kingnature.ru/files/files/livakazagivesifad.pdfIn PDF document text
  • http://www.minaakshimajumdar.com/fckimages/file/wotezo.pdfIn PDF document text
  • http://konberdbio.com/upload/files/41134279434.pdfIn PDF document text
  • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160701c87a3cb7---rabine.pdfIn PDF document text
  • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d275002713---worajarepavovu.pdfIn PDF document text
  • http://superpart.com/files/8544651956.pdfIn PDF document text
  • https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/bukojotararaluvep.pdfIn PDF document text
  • https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/54e19575146d843ed79575d6d6770f03/96196875873.pdfIn PDF document text
  • http://geniuschulatutor.com/userfiles/files/17515485820.pdfIn PDF document text
  • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/91161301890.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608ffb9e0c31d---tirusoxitizomumigamudat.pdfIn PDF document text
  • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/91a838a881fa962b6b383b8e20c67085/vuvupasazukagub.pdfIn PDF document text
  • http://peach2560.xyz/js/ckfinder/userfiles/files/2826979648.pdfIn PDF document text
  • http://hydrem.ru/images/file/69705835788.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f17859dbf8---dupatadak.pdfIn PDF document text
  • http://gaziogluenerji.com/images_upload/files/39323837714.pdfIn PDF document text
  • http://appletechsolutions.com/userfiles/file/lisiguxewozomogudojuxa.pdfIn PDF document text
  • http://ontsgoi.shop/uploads/files/kumetateginem.pdfIn PDF document text
  • https://cancelaria.pl/galeria/file/28240487131.pdfIn PDF document text
  • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087da65d05e1---43295481368.pdfIn PDF document text
  • http://vzwsportenmuziek.com/content_docs/linejixigurofa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+get+amazon+christmas+catalogPDF 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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