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 https://allytemp.ru/uplcv?utm_term=asme+b31.3+pdf+2017+free+download PDF link annotation

  • http://bularz-auto.pl/images/userfiles/file/92480300705.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/5b75486de60940c53394f73986bf1caf/gizomitivavadod.pdfIn PDF document text
  • http://gptools.net/userfiles/file/fikavosakawixava.pdfIn PDF document text
  • http://koryosushi.com/uploads/files/palijoxadirek.pdfIn PDF document text
  • https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/f847a73cf21dd681f6918308078e89e4/89947317889.pdfIn PDF document text
  • https://advik.net/userfiles/file/2210366898.pdfIn PDF document text
  • http://vtvxm.vn/userfiles/file/sigixorodewop.pdfIn PDF document text
  • https://www.speeddating.lt/speeddating/ckfinder/userfiles/files/14035561000.pdfIn PDF document text
  • http://csc020.com/userfiles/file/20210613040939_2511l0.pdfIn PDF document text
  • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ed49ef124---famoluzawezerilu.pdfIn PDF document text
  • http://tnslib.su/userfiles/files/gunufofaneg.pdfIn PDF document text
  • https://masihpt1.com/contents//files/60995501739.pdfIn PDF document text
  • https://bomberosdenavarra.com/userfiles_nexo/files/bubaririteweboruzasotaj.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608f13861c8ed---88359969129.pdfIn PDF document text
  • http://dspec-car.com/js/upload/files/46880850927.pdfIn PDF document text
  • https://cplastik.com/data/cms/file/43153609038.pdfIn PDF document text
  • http://simonkuehner.de/gfx/userfiles/files/3393408045.pdfIn PDF document text
  • http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160b681267c9b3---4882053367.pdfIn PDF document text
  • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b23f41d1120---xosutazakone.pdfIn PDF document text
  • http://ozdesignhouse.com/app/webroot/uploads/files/53502493726.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16088882ba6d3d---doxepuxudiva.pdfIn PDF document text
  • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/677de5b042f5e7e2f3680a63c53fe6f6/gesidonapakoza.pdfIn PDF document text
  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607875870d3dc---13106833476.pdfIn PDF document text
  • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16109c31c8da6b---lesajolimosakelusopog.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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