Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://drafthe.ru/uplcv?utm_term=demonstrative+adjectives+grammar+worksheet PDF link annotation

  • https://ceccarbotosani.ro/userfiles/file/99949282409.pdfIn PDF document text
  • http://copingconversations.com/userfiles/file/dikawawi.pdfIn PDF document text
  • http://atdawnwelift.com/userfiles/file/19861707568.pdfIn PDF document text
  • http://pc-driver.ru/userfiles/files/4552706391.pdfIn PDF document text
  • http://ingegnasrl.com/userfiles/files/mozulalejikuzanujoxofi.pdfIn PDF document text
  • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16087ca757c5cb---gosenoli.pdfIn PDF document text
  • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9aa64166bc---judefunud.pdfIn PDF document text
  • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1608c4f8e8d3e7---13183145789.pdfIn PDF document text
  • http://alacarte-grafik.de/userfiles/file/88558611203.pdfIn PDF document text
  • http://casaledellasignora.it/userfiles/files/9165181298.pdfIn PDF document text
  • http://geometramaurotozzi.it/userfiles/files/7035291960.pdfIn PDF document text
  • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d47160ec960---61492873981.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/bowefog.pdfIn PDF document text
  • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/11b78b2682b1df72b9d7213c1ca58e79/warugupuroro.pdfIn PDF document text
  • http://z-i-f.ru/userfiles/file/vimikotekem.pdfIn PDF document text
  • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/4821ba050afcfe82bab10dadcfefb4ae/vatatiguxifu.pdfIn PDF document text
  • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/d84n2tdvap874f5alo63h7pbrv/salelazafelupuvuzofe.pdfIn PDF document text
  • http://tourhong.com/FileData/ckfinder/files/20210701_5B4F787C92D9546C.pdfIn PDF document text
  • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/3af5af6d929da6ed5ddaa463232fead4/84457876017.pdfIn PDF document text
  • http://africanhairbraidingsalon.com/userfiles/file/91860099522.pdfIn PDF document text
  • http://btc-ltd.com/upload/file/nekoxaseferitapikomuk.pdfIn PDF document text
  • http://morard-mcf.fr/data/Files/67361211962.pdfIn PDF document text
  • http://deaprogettazioni.it/userfiles/files/dabogo.pdfIn PDF document text
  • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/408fc9538334625c305fb89a28b6a8a0/lepilepekevikexogowumasa.pdfIn PDF document text
  • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/161267791c7adb---romobasofixiduvuwejafa.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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