Malicious PDF — malware analysis report

Heuristics 9

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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 https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139e28b2ab16---vilufizigunuze.pdf In PDF document text

  • http://hanasushimenifee.com/uploads/files/sosakoxemujo.pdfIn PDF document text
  • http://yogathoitrang.com/quangbasanpham/app/webroot/upload/image/files/56890032962.pdfIn PDF document text
  • http://avandcie-automation.fr/ckfinder/userfiles/files/70639117482.pdfIn PDF document text
  • https://maryamghiasi.com/images/upload/files/golakupodasexogokajuzup.pdfIn PDF document text
  • http://dribblebar.pl/userfiles/file/51617632741.pdfIn PDF document text
  • http://sumtinathholidays.com/admin/uploadfiles/file/zetuxamukiretumigogujejax.pdfIn PDF document text
  • http://chaukitchen.com/uploads/files/40941959713.pdfIn PDF document text
  • http://hsound.ro/images/custom/file/poxer.pdfIn PDF document text
  • http://etepi.pt/js/ckfinder/userfiles/files/83927060283.pdfIn PDF document text
  • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139d0f4d9bca---jikomibujagurafukala.pdfIn PDF document text
  • https://bocrangsuthammy.vn/upload/files/98212901225.pdfIn PDF document text
  • http://dgelc.com/userfiles/file/20210908144657.pdfIn PDF document text
  • http://jjc-dev.com/userfiles/file/20355444009.pdfIn PDF document text
  • http://dgjinhak.kr/DATA/upload/files/202109080701377102.pdfIn PDF document text
  • http://medicaldistri.com/ckfinder_files/files/tiguriluvetowemeliluzum.pdfIn PDF document text
  • http://thehedgerowchronicles.com/ckfinder/userfiles/files/68286289665.pdfIn PDF document text
  • https://tttinox.com/upload/userfiles/files/dikaxiresabozifipudivogat.pdfIn PDF document text
  • http://abpjseah.news-read.com/upload/files/62177743924.pdfIn PDF document text
  • http://liavanhaeringen.nl/userfiles/files/84615517683.pdfIn PDF document text
  • https://gionggiacam.com/ckfinder/userfiles/files/63902251742.pdfIn PDF document text
  • http://feynburg-uhren.de/uploads/88967905018.pdfIn PDF document text
  • http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/fireloxiweler.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161360199749d8---nuzemiviwalimuf.pdfIn PDF document text
  • http://www.jasolasia.com/image/upload/File/67102884646.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+tell+if+phone+is+rootedPDF 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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