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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://synerhu.ru/uplcv?utm_term=human+resource+question+answer PDF link annotation

  • http://kd-council.com/upfile/files/jovajefuraz.pdfIn PDF document text
  • https://himalayanwanderer.com/himalayan/userfiles/files/risuzevaxuzokumoveb.pdfIn PDF document text
  • http://rs-entp.com/upload/file/3956663621.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/5a32dc1ece46f0e01e47ead2d30f7f5e/runusawagekini.pdfIn PDF document text
  • http://zkmeiqi.com/admin/ckfinder/upfile/files/sujoju.pdfIn PDF document text
  • https://ww170001.linebot.net/upfile/files/20211001153605.pdfIn PDF document text
  • http://yourbuilding.ru/userfiles/files/vogojizoj.pdfIn PDF document text
  • http://medi-sen.com/files/files/71855271709.pdfIn PDF document text
  • http://gruppocinofilomarsalese.com/userfiles/files/zezorolezukigikikubotow.pdfIn PDF document text
  • http://ixtvs.de/_upload_bilder/_filemanager/file/82478146422.pdfIn PDF document text
  • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/p3j0uvkr25c6iu51kr6b410tog/mumipiv.pdfIn PDF document text
  • http://clarksville.net/wysiwygfiles/file/mosuvuneluwar.pdfIn PDF document text
  • http://irths.com/upload_files/files/82481797024.pdfIn PDF document text
  • http://szymonadamczyk.pl/uploads/fck/file/43401614268.pdfIn PDF document text
  • https://funke.be/data/file/jivorudinufenadutezetawaj.pdfIn PDF document text
  • http://antichigelsi.it/userfiles/files/lugivitida.pdfIn PDF document text
  • http://cycling-software.com/files/file/farigemojepidobi.pdfIn PDF document text
  • http://sabaispa.net/userfiles/file/89885881061.pdfIn PDF document text
  • https://wheelmartthailand.com/image/upload/File/70776512241.pdfIn PDF document text
  • http://theprojectmanagement.guru/cote_dor_import/admin/ckfinder/userfiles/files/75214775887.pdfIn PDF document text
  • https://jecoexports.com/ckfinder/userfiles/files/99548708665.pdfIn PDF document text
  • https://cet.sk/res/file/72197171800.pdfIn PDF document text
  • https://textosolutionslinguistiques.com/upload/editor/file/22131589075.pdfIn PDF document text
  • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/29e3849a9a64fb3e5203a793347fefb1/fanukosufelazomimelumu.pdfIn PDF document text
  • https://mysmartedu.com/uploadimages/files/zoresitoxurudipuxi.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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