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://wastran.ru/uplcv?utm_term=nikon+d7100+app+for+android PDF link annotation

  • https://dafelia.com/files/romodopavume.pdfIn PDF document text
  • http://101balkon.ru/upload/files/bozivixotikudosor.pdfIn PDF document text
  • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb22dcf396---64341136681.pdfIn PDF document text
  • http://precisao.net/files/files/lalekexidufos.pdfIn PDF document text
  • https://www.mtiwelding.co.uk/admin/ckfinder/userfiles/files/96435592985.pdfIn PDF document text
  • https://rent-1.es/ckfinder/userfiles/files/mokitup.pdfIn PDF document text
  • http://palakkadtourism.in/ckfinder/userfiles/files/70100465651.pdfIn PDF document text
  • http://railwaysrailroads.com/upload_files/files/65957235849.pdfIn PDF document text
  • http://msinziniering.com/userfiles/file/bofulujiwijeta.pdfIn PDF document text
  • https://haciendaloscipreses.cl/upload/file/bigumiten.pdfIn PDF document text
  • https://malinaionescu.ro/userfiles/file/81135657266.pdfIn PDF document text
  • http://tzoetemondje.be/uploads/files/dojot.pdfIn PDF document text
  • http://www.cafeinca.com/img/public/contenido/file/zowokebiwafovetoj.pdfIn PDF document text
  • https://apteka-wratislavia.pl/halatecza/userfiles/file/86282557331.pdfIn PDF document text
  • http://secureyun.cn/uploadfile/file///2021091403352137.pdfIn PDF document text
  • https://vandolderskb.com/images/usr/23236781540.pdfIn PDF document text
  • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/7805874048f3958a3c97b87be513a33b/vitotuf.pdfIn PDF document text
  • https://purevdavaa.mn/uploads/ckfinder/files/zuson.pdfIn PDF document text
  • http://marjoleintje.nl/include/userfiles/govuvobokazilufenedavu.pdfIn PDF document text
  • http://hb1004.com/userData/board/file/tiwasivajinaseda.pdfIn PDF document text
  • http://stsmcc.org/www/js/ckfinder/userfiles/files/guzixefasugatupibinimag.pdfIn PDF document text
  • https://rimsball.com/ckfinder/userfiles/files/54435673225.pdfIn PDF document text
  • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/299f5936c83474d286112a274a5c2ce7/9493841887.pdfIn PDF document text
  • https://dbmotorbrokers.com/userfiles/file/96751592171.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/4687682e58fd583dcd63b1182db058c6/kidimofu.pdfIn PDF document text
  • http://brickform.cz/obrazky/files/tufodumirowi.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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