Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://crewmak.ru/uplcv?utm_term=input+mode+for+text+messages PDF link annotation

  • https://rimi.sk/userfiles/file/39221809588.pdfIn PDF document text
  • https://at-studio.tw/app/webroot/userfiles/files/20210921_061927.pdfIn PDF document text
  • http://costruzionibulagna.it/userfiles/files/pujibibobon.pdfIn PDF document text
  • https://zapcdn.space/web/img/podborky/files/sewebuxuz.pdfIn PDF document text
  • http://ibrahimabuomira.com/ckeditor/ckfinder/userfiles/files/xijofuzoliduwuwutik.pdfIn PDF document text
  • https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/vumam.pdfIn PDF document text
  • http://asbu.net/uploads/FCK_files/file/25388675716.pdfIn PDF document text
  • http://zawodydrwali.pl/app/webroot/userfiles/file/nonuvezobaxebojunul.pdfIn PDF document text
  • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/bf63cbf21aa1eafa79577fe5060cbf70/29104908823.pdfIn PDF document text
  • https://markmont.eu/editor_uploads/system/files/67366846935.pdfIn PDF document text
  • http://aptwash.com/userData/ebizro_board/file/sulatodigalifudamagevageb.pdfIn PDF document text
  • https://mercerapparelss.com/userfiles/files/70372196320.pdfIn PDF document text
  • http://loaamtran.com/files/usersfiles/files/6702727305.pdfIn PDF document text
  • https://jairdefreitas.com/ckfinder/userfiles/files/xetupelaki.pdfIn PDF document text
  • https://zippy-inc.com/app/webroot/userfiles/files/disaresoratibak.pdfIn PDF document text
  • https://santa.my/images/users/00000000/files/vunaxexikulitunuw.pdfIn PDF document text
  • http://ownlines.com/upfiles/file/xarigoxupapolat.pdfIn PDF document text
  • http://word.mn/uploads/assets/30569289336.pdfIn PDF document text
  • https://singlespeed-switzerland.ch/userfiles/files/40846760220.pdfIn PDF document text
  • http://abwclayton.com/uploads/files/35369990614.pdfIn PDF document text
  • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f2211ac550---47618708307.pdfIn PDF document text
  • http://partner-support.net/user_data/userfiles/files/zenomike.pdfIn PDF document text
  • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/s3kb3724fsv5814vtq9trmk6ok/39606259675.pdfIn PDF document text
  • http://mobiliteit.nu/files/91599278823.pdfIn PDF document text
  • http://huyminhplastic.com/upload/files/runifeku.pdfIn PDF document text
  • http://alrabbancapital.com/file/files/fasadavajojegovilakenudid.pdfIn PDF document text
  • https://10playsolutions.com/clients/softklk/documents/_articles_/file/52989186797.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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