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.
• 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.
• 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://nomylo.ru/uplcv?utm_term=cheat+dragon+mania+legends+2021 PDF link annotation

  • https://vientangluc.com/upload/files/88812232478.pdfIn PDF document text
  • https://melnikhouse.com/userfiles/file/rexeziwatujuladixenam.pdfIn PDF document text
  • https://proektasis.gr/admin/spaw2/uploads/files/jopegiw.pdfIn PDF document text
  • https://27061010.com/uploads/files/202109100007552939.pdfIn PDF document text
  • http://www.pethouse.es/ckfinder/userfiles/files/44140563346.pdfIn PDF document text
  • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/gudimizudefemofos.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16141ba2254258---51152054973.pdfIn PDF document text
  • https://mobilpetrol.olajpark.hu/files/files/lotufu.pdfIn PDF document text
  • http://knshzj.com/CKEdit/upload/files/kutizefotibivizoxufogo.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/rewiwikuwababid.pdfIn PDF document text
  • http://delfosventures.eu/userfiles/files/35186411657.pdfIn PDF document text
  • http://kripasec.com/userfiles/file/4826142764.pdfIn PDF document text
  • https://www.utn.ac.cr/sites/default/files/files/97639870645.pdfIn PDF document text
  • https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/8c5495da6f2d9df8efb8af57d747c21a/mifotipozunopagegug.pdfIn PDF document text
  • https://scavilecis.it/userfiles/file/63471900483.pdfIn PDF document text
  • http://sirindhorn.net/upload/File/24300111393.pdfIn PDF document text
  • https://bosgo.mn/uploads/files/61613505937.pdfIn PDF document text
  • http://openendrep.com/userfiles/files/94943175231.pdfIn PDF document text
  • http://pro-elec.ru/ckfinder/userfiles/files/1658527241.pdfIn PDF document text
  • http://boissee.fr/userfiles/file/pipenokedabunekeli.pdfIn PDF document text
  • https://hargagila.com/uploads/image/files/xerizurokedoxawafenex.pdfIn PDF document text
  • https://henseltech.cz/userfiles/file/94887982553.pdfIn PDF document text
  • http://mos-craciun-inchiriere.ro/fckfiles/file/5288474303.pdfIn PDF document text
  • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16147078daef61---41431376572.pdfIn PDF document text
  • https://hazeloyun.com/calisma2/files/uploads/33493374625.pdfIn PDF document text
  • https://taechoclub.com/FileData/ckfinder/files/20210909_100DF90F03D18205.pdfIn PDF document text
  • http://ylgems.com/file_media/file_image/file/482565678.pdfIn PDF document text
  • http://1544-7419.net/upload/fckeditor/file/97672810093.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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