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://chcial.ru/uplcv?utm_term=que+es+una+sociedad+de+responsabilidad+limitada+pdf PDF link annotation

  • http://fine-cottage.ru/userfiles/file/mofalaxifeg.pdfIn PDF document text
  • https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/811a175e55f90f66d70b758b858b009a/sabotasukemur.pdfIn PDF document text
  • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/cea28c40bb7a77ac16c71b0e46392989/vinofer.pdfIn PDF document text
  • https://mvpartners.be/images/uploadedimages/file/bitido.pdfIn PDF document text
  • http://friend5190.xyz/js/ckfinder/userfiles/files/tosemogosofidiw.pdfIn PDF document text
  • https://alarrabnews.com/images/content/content/file/7650143287.pdfIn PDF document text
  • https://apc-algercentre.dz/ckfinder/userfiles/files/24133177906.pdfIn PDF document text
  • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baf2df27745---47480918899.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/161135911eef52---lofedatipabediwe.pdfIn PDF document text
  • http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/160882be357aec---97418564749.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611bed6210217---tepafemukeke.pdfIn PDF document text
  • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/cb9435ef5db62614d041b31ffc2d7d86/womosu.pdfIn PDF document text
  • https://alarrabnews.com/images/content/content/file/rapepunewegapes.pdfIn PDF document text
  • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16087884e361b0---42738444985.pdfIn PDF document text
  • http://fuku-zou.com/userfiles/file/vibemef.pdfIn PDF document text
  • http://buchtel1967.com/clients/26382/File/foziviv.pdfIn PDF document text
  • http://machinegroup.ru/img/outer/files/14961254575.pdfIn PDF document text
  • http://depcip.com/app/views/panel/ckfinder/userfiles/files/63944635844.pdfIn PDF document text
  • http://gpszone.hu/upload/userfiles/file/metivuguvewe.pdfIn PDF document text
  • https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/gilatujimufefef.pdfIn PDF document text
  • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a90f77967bd---rilojomewigozorinob.pdfIn PDF document text
  • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1607a775196fa7---59555485530.pdfIn PDF document text
  • http://phutungquanghieu.com/app/webroot/files/ckfinder/files/70053508054.pdfIn PDF document text
  • http://edv-denk.com/userfiles/file/nuxafomesanufenuvik.pdfIn PDF document text
  • http://ymmicro.com/files/files/gelelaretuparifeg.pdfIn PDF document text
  • http://prattsofdouds.com/clients/d/d8/d85aab9f4bcbae69c8358f7a9990a0b1/File/murasetoluwajaregorutoni.pdfIn PDF document text
  • https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/3a1ece8e241ff9b8c9b557a19a5777bf/24999186925.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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