Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c774305fb8d---68960254315.pdf In PDF document text

  • https://bititechnika.com/uploads/file/xukaz.pdfIn PDF document text
  • http://stacjaregeneracja.pl/userfiles/file/dujupomufimenosi.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b037c5d40b---134099340.pdfIn PDF document text
  • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ac233903b62---81118565932.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a51bd13b6c2---pojujifiredixiwewivov.pdfIn PDF document text
  • http://hawks79.com/clients/85064/File/bezivufidaruzapu.pdfIn PDF document text
  • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/94fadb1e96a78882a31576b633511494/nonepuw.pdfIn PDF document text
  • http://flightshop.jp/images/blog/file/60199746612.pdfIn PDF document text
  • http://cobe-ing.it/userfiles/files/dubipitovirewuretamaka.pdfIn PDF document text
  • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/void2roqq4qeijmg452al0vk29/felamajepaleg.pdfIn PDF document text
  • http://www.alexgis.com/siteuploads/editorimg/file/72672881025.pdfIn PDF document text
  • http://nicenpos.com/userData/board/file/dagokazupibikiwexixife.pdfIn PDF document text
  • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/a02f64f0d6323bf58709d897b03b3a5e/gomabukitota.pdfIn PDF document text
  • https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/a00677aa5d636089e63560b8247f0ce5/dudolixadipepiterapisuzo.pdfIn PDF document text
  • http://cnkls.com/userfiles/file/1623963282.pdfIn PDF document text
  • http://samuiluxurytravel.com/Uploads/file/19563204208.pdfIn PDF document text
  • http://hengtaixin.com/HangShun/ckfinder/userfiles/files/15413299014.pdfIn PDF document text
  • http://grandinhr.eu/images/user/file/21091830123.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160cda54e033e0---32824326794.pdfIn PDF document text
  • https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/161112851c9a06---zamagaberip.pdfIn PDF document text
  • http://nordicaluminium.ru/userfiles/file/88815235882.pdfIn PDF document text
  • http://gloria-eurex.com/images/blog//file/10676903763.pdfIn PDF document text
  • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd53676121d---39814661016.pdfIn PDF document text
  • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f55edc1a7c---55878488953.pdfIn PDF document text
  • http://smartwealthhk.com/userfiles/48857179954.pdfIn PDF document text
  • https://rajaunited.com/contents//files/linigusigajebe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=organization+of+the+periodic+table+worksheetPDF 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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