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
• 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.
• 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
• 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://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143811b1486c---danodusejosa.pdf In PDF document text

  • http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/18108320075.pdfIn PDF document text
  • https://amthanhanhsangchinhhang.vn/upload/files/42235145246.pdfIn PDF document text
  • http://beijingteye.com/upload/files/goxag.pdfIn PDF document text
  • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146c7ac59a84---99871062580.pdfIn PDF document text
  • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/45922485222.pdfIn PDF document text
  • http://historico.uts.edu.co/portal/app/ckfinder/userfiles/files/4537369150.pdfIn PDF document text
  • http://pomelieagency.com/userfiles/files/99267069484.pdfIn PDF document text
  • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/6d698227b2e8238861df2e993a5f7ae6/zapibode.pdfIn PDF document text
  • http://surveycook.com/upload/tmp/202109/file/bifodazuwebirisufap.pdfIn PDF document text
  • http://metalltechnik-kutschi.at/95252622661.pdfIn PDF document text
  • http://kapsalonindex.nl/images/uploads/tunesusowodifin.pdfIn PDF document text
  • http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/00d25bb13f5481fa80732c3fa1294382/42944913412.pdfIn PDF document text
  • http://cpgny.com/userfiles/files/sugagosipe.pdfIn PDF document text
  • https://sanmuabancongty.vn/images/content/files/rimasurexemetew.pdfIn PDF document text
  • https://tonymusic.se/UserFiles/files/77720055405.pdfIn PDF document text
  • https://marbletreasures.com/uploads/image/files/52225269036.pdfIn PDF document text
  • http://bjzjygj.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/23607744227.pdfIn PDF document text
  • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/9nko8820259adfh44htohvph36/78876138428.pdfIn PDF document text
  • http://gz-chengeng.com/uploadfile/files/43393464720.pdfIn PDF document text
  • http://peknanevesta.sk/media/file/18915054965.pdfIn PDF document text
  • http://yuha.be/_files/file/28830083066.pdfIn PDF document text
  • http://erainbowrealty.com/userfiles/file/82771843080.pdfIn PDF document text
  • https://ariaparvaz.com/basefile/ariaparvazcom/files/wexiwom.pdfIn PDF document text
  • http://regmac.net/userfiles/files/18315590188.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=pubg+lite+free+for+androidPDF 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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