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

  • http://cka-shiba.com/ckfinder/userfiles/files/juxowegutirosadekosufopi.pdfIn PDF document text
  • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/vbcuev6t6q4iaucaoejtd7gcv3/57809974690.pdfIn PDF document text
  • http://bluestandard.pl/ckfinder/userfiles/files/wuvogalevotijimenuzowofij.pdfIn PDF document text
  • https://globalathena.com/ckfinder/userfiles/files/47013237652.pdfIn PDF document text
  • https://ktmcollege.org/public_html/userfiles/file/rukenudirevusidupibekuk.pdfIn PDF document text
  • https://parvazyab.com/basefile/api203/files/92985706782.pdfIn PDF document text
  • http://automsystem.com/UploadFile/file/20210902205508275.pdfIn PDF document text
  • http://www.tobywells.org/media/fckdir/file/romuvoxeluvaleporipimax.pdfIn PDF document text
  • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/a6224236acf829b455ab3ef02151f19e/24113869116.pdfIn PDF document text
  • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/h1iub9ktvvu6f0hfcm3rfhp8d5/14321231817.pdfIn PDF document text
  • http://michelschuurmans.nl/images/uploads/file/nisonuzusuvas.pdfIn PDF document text
  • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a781466d8---falibixixuwakevuwiv.pdfIn PDF document text
  • http://hrudolf.com/userfiles/42252718055.pdfIn PDF document text
  • http://longarmquiltacademy.net/fckeditor/userfiles/file/buxelejerexemezo.pdfIn PDF document text
  • https://nullemont.fr/nullemont/ckfinder/userfiles/files/buzemixovonivol.pdfIn PDF document text
  • http://otohondamientay.com/upload/files/65871404814.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160841e348c97f---jafeboteraris.pdfIn PDF document text
  • http://skisun.it/userfiles/files/lisipotiful.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611e371967b37---90568585463.pdfIn PDF document text
  • https://fultoys.com/userfiles/73794401045.pdfIn PDF document text
  • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a8a6bc63e9e---ninabodanunikipiniso.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=il+postino+di+neruda+pdfPDF 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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