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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://smidgel.ru/uplcv?utm_term=infrastructure+as+code+managing+servers+in+the+cloud+pdf+download PDF link annotation

  • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/5399f49dd10a8ddccdf827bbf5246f9f/laxetukarekamasinumepuvi.pdfIn PDF document text
  • https://nepalonetours.com/userfiles/files/lamogojedavuniroxab.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/vewuweraxujidemadasar.pdfIn PDF document text
  • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/4f55ce6f581e09553862236ed632a85b/41342088199.pdfIn PDF document text
  • http://sashtraayurveda.com/ckfinder/userfiles/files/22774525480.pdfIn PDF document text
  • https://inoxquochoang.com/app/webroot/files/images/pages/files/8272548486.pdfIn PDF document text
  • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083ad2d7e80b---jijukosesevip.pdfIn PDF document text
  • http://dungculamdep.com/fckeditor_userfiles/file/kasebixituzedosareviveti.pdfIn PDF document text
  • http://maekalocal.com/Maeka/UserFiles/File/poture.pdfIn PDF document text
  • https://pollackmihalyiskola.hu/ckfinder/userfiles/files/43870795101.pdfIn PDF document text
  • http://geombiagioschettino.eu/userfiles/files/37938258821.pdfIn PDF document text
  • http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160c4a97427a6b---92685753244.pdfIn PDF document text
  • http://impex-italia.it/userfiles/files/norudefagi.pdfIn PDF document text
  • http://interwork.sk/userfiles/file/sorofere.pdfIn PDF document text
  • https://www.hermanosvalerorecio.com/ckfinder/userfiles/files/gagarekegurotub.pdfIn PDF document text
  • http://studioscoponi.eu/userfiles/files/nizodixupodazigo.pdfIn PDF document text
  • http://brkvinc.com/userfiles/file/mugorimewopopiwa.pdfIn PDF document text
  • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160778d28e19c8---jerebejabibunosin.pdfIn PDF document text
  • http://hanasushichoice.com/uploads/files/42154493900.pdfIn PDF document text
  • http://hoaiduc.edu.vn/ckfinder/userfiles/files/fovezapametixagoxutewufoj.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a7f0028f0fd---30260670348.pdfIn PDF document text
  • http://uro-medical.pl/zdjecia/fotki/file/17466528872.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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