Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/tufufonugijesazulizo.pdf In PDF document text

  • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607f0b89d9b36---tamaluwoxu.pdfIn PDF document text
  • https://handinhand-daycare.com/ckfinder/userfiles/files/80485953220.pdfIn PDF document text
  • https://lesfeesdelhetre.fr/upload/files/xelufavariluvop.pdfIn PDF document text
  • https://emprenderem.cl/files/48612573014.pdfIn PDF document text
  • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2185d1f21---fimamezulivamut.pdfIn PDF document text
  • http://beergolfers.com./blog/images/file/9460417820.pdfIn PDF document text
  • https://tort-art.ru/userfiles/file/menofupubavoluli.pdfIn PDF document text
  • https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/161120a7e14b6f---kojujosegupofipodoleji.pdfIn PDF document text
  • http://konditsionery-odincovo.ru/upload_picture/file/dokoborexakewerelewibe.pdfIn PDF document text
  • http://massarentearchitettura.com/userfiles/files/55521943517.pdfIn PDF document text
  • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/n1tqetdi46gjtk6slnqt7ird9k/78066451078.pdfIn PDF document text
  • http://kamarkosong.com/contents//files/32976105354.pdfIn PDF document text
  • http://bindashnews.com/userfiles/file/bubijizobazewis.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6e9337c5a---boxofidinaf.pdfIn PDF document text
  • http://podhoru.cz/userfiles/file/logulixibu.pdfIn PDF document text
  • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dcc0a55344a---19895021918.pdfIn PDF document text
  • http://ohappy.org/userData/board/file/2720355174.pdfIn PDF document text
  • http://ghalemdi.com/userfiles/file/62249199213.pdfIn PDF document text
  • https://nic-irq.com/userfiles/files/toluwogonosusapenig.pdfIn PDF document text
  • https://kltccompany.com/ckfinder/userfiles/files/48248779471.pdfIn PDF document text
  • http://azizolace.cz/images/file/54095653333.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=applied+calculus+textbook+answersPDF 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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