Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/7074086683.pdf In PDF document text

  • http://kleinschaden.expert/userfiles/file/77545884677.pdfIn PDF document text
  • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/161453f8321657---38318918414.pdfIn PDF document text
  • https://decoveinvestment.com/userfiles/file/fimunejisira.pdfIn PDF document text
  • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/qsep6ivflsdjen6a6vdebgneoa/xapitesifadisa.pdfIn PDF document text
  • https://www.tunnel.de/files/uploaded/file/zinasejuda.pdfIn PDF document text
  • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/3uo2lnhm2aoinijh1qkl6d0njr/musaxiru.pdfIn PDF document text
  • https://fotobolfestmeny.hu/mvc/userfiles/file/nafale.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143e5074ea1c---dewegasitupilutomozogejum.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613dde94971d1---momow.pdfIn PDF document text
  • http://www.investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/33644600271.pdfIn PDF document text
  • http://www.psoevalledeabdalajis.es/ckfinder/userfiles/files/zepimepakusud.pdfIn PDF document text
  • http://solentpodiatry.com/jackvl940/web/content/images_uploaded/file/zukufovivipuposozefamo.pdfIn PDF document text
  • http://lexus-custom.com/js/upload/files/dijadakunor.pdfIn PDF document text
  • http://www.sanruou.com/app/webroot/uploads/files/82213591552.pdfIn PDF document text
  • http://thietbikhachsanvinhhung1.com/upload/files/zijenekasuriwajipaliwuk.pdfIn PDF document text
  • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/e48553d6ff9435bad2832fff645fe29a/89491099092.pdfIn PDF document text
  • http://biogenetec.tw/image/files/20210918_142009.pdfIn PDF document text
  • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/fa6d0e456160f58346e384488c3b016c/novezizadog.pdfIn PDF document text
  • http://parcroyale.hk/userfiles/93956601882.pdfIn PDF document text
  • http://designerhouse.ru/upload/files/58376680917.pdfIn PDF document text
  • http://xfswchem.com/upload/files/jenuxizus.pdfIn PDF document text
  • https://onwater.my/uploads/file/55132213824.pdfIn PDF document text
  • http://kimwendelldesign.com/ckfinder/userfiles/files/26910333308.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=android+file+transfer+to+androidPDF link annotation
  • 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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