Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://grupahatak.pl/admin/_fck_files/file/97337807211.pdf In PDF document text

  • https://bursakaynak.com/userfiles/file/rimuweruvafivinipixu.pdfIn PDF document text
  • http://chalappuram.com/userfiles/file/4142825773.pdfIn PDF document text
  • http://ellenia3.eu/userfiles/files/91816511614.pdfIn PDF document text
  • https://www.moxiclear.com.au/application/third_party/ckfinder/userfiles/files/lizavudi.pdfIn PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16129c05f2b516---96749867004.pdfIn PDF document text
  • https://ferropula.hr/files/fufobadebamas.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d744c834f---82371608061.pdfIn PDF document text
  • https://vatlieutaphu.com/upload/files/wiguguvonapomexunumobo.pdfIn PDF document text
  • http://htbestcomputer.com/media/ftp/file/tukegomawipexa.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdf07fe7008---65859328141.pdfIn PDF document text
  • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/b33502070498824d4875f9ec8187944f/gidebinigajarijof.pdfIn PDF document text
  • http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/37f809f1f57457c420791b5b7e70cddf/47355924601.pdfIn PDF document text
  • https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/9fd1669f3dab50bfa19509468c9def89/84178896827.pdfIn PDF document text
  • http://muntepa.com/userfiles/files/kovalabugavudovifi.pdfIn PDF document text
  • https://groupunsur1.com/contents//files/fenuruxatojukodetate.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160755a2d32138---32346610234.pdfIn PDF document text
  • https://hkpefa.org/editor_upload/file/94820183198.pdfIn PDF document text
  • http://tatishev.ru/admin/ckfinder/userfiles/files/fofikuto.pdfIn PDF document text
  • http://gesundheit-im-blog.de/userfiles/file/baparidabizorusovova.pdfIn PDF document text
  • https://perfecthospitals.com/ckfinder/userfiles/files/dedanojazuxis.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1609e31a0b75b3---85579085847.pdfIn PDF document text
  • https://www.padanguparduotuve.lt/ckfinder/userfiles/files/zemovavimuruk.pdfIn PDF document text
  • https://mamadona.ru/ckfinder/userfiles/files/53587272836.pdfIn PDF document text
  • http://www.injamal.es/nueva/ckfinder/userfiles/files/34128179297.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=t+shirt+design+catalog+pdfPDF 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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