Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://krisoc.ru/uplcv?utm_term=copia+seguridad+aplicaciones+y+datos+android PDF link annotation

  • https://nepalipublisher.com/ckfinder/userfiles/files/9965685215.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613a167a4b2fb---92535966507.pdfIn PDF document text
  • http://samuiluxurytravel.com/Uploads/file/xitiwobevotetu.pdfIn PDF document text
  • http://zgic.ru/!upload/files/36807834339.pdfIn PDF document text
  • http://aaas.handyfriendship.com/upload/files/golirefafonuta.pdfIn PDF document text
  • http://biolabsrl.org/userfiles/files/92638651292.pdfIn PDF document text
  • https://www.vignolaweb.it/ckfinder/userfiles/files/jafuzosumamatizewe.pdfIn PDF document text
  • http://101eyewear.com/luutru/files/favosodemukubewowemes.pdfIn PDF document text
  • https://egc.ecrom.work/syo/files/80141754315.pdfIn PDF document text
  • http://auxerretv.com/content/public/file/47645076686.pdfIn PDF document text
  • http://hondatayho.top/img-ngocbao/files/12281256904.pdfIn PDF document text
  • http://a1climbing.com/userfiles/files/wiwagebipenijuwek.pdfIn PDF document text
  • http://wxeina.com/userfiles/files/53639656807.pdfIn PDF document text
  • http://artvideo74.ru/upfiles/files/87557646191.pdfIn PDF document text
  • http://agro-vostok.ru/userfiles/file/14510049752.pdfIn PDF document text
  • http://doggystylzgrooming.com/admin/photos/file/6370549521.pdfIn PDF document text
  • http://yasairamenbar.com/uploads/files/77377412240.pdfIn PDF document text
  • http://fecirturizm.com/resimler/files/36049638424.pdfIn PDF document text
  • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139213d4b88d---79958597979.pdfIn PDF document text
  • http://daearesort.com/FileData/ckfinder/files/20210916_23DE27E47791D646.pdfIn PDF document text
  • https://beta.nhatthiengroup.com/files/uploaded/files/jexuletenemovulivevoliji.pdfIn PDF document text
  • http://tjchenxing.com/filespath/files/20210903035231.pdfIn PDF document text
  • https://nsaimmigration.com/userfiles/file/91499632367.pdfIn PDF document text
  • https://espritgt.com/userfiles/file/11272419632.pdfIn PDF document text
  • http://evaemlak.com/userfiles/file///zununodopafagividu.pdfIn PDF document text
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/4tuhgtseo4psk9s2sii0vgoi72/72196686188.pdfIn PDF document text
  • http://expnavi.com/sites/all/sites/default/files/file/wivisal.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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