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 https://synerhu.ru/uplcv?utm_term=kirito+strongest+sword PDF link annotation

  • http://himalayakebab.irafbrothers.com/shipinc/userfiles/files/92044961010.pdfIn PDF document text
  • http://marsalanoleggio.it/userfiles/files/jiwutog.pdfIn PDF document text
  • https://derya.afmiletisimajansi.info/resimler/files/77089852793.pdfIn PDF document text
  • http://phulieumaymacbaoco.com/hinhanh_fckeditor/file/lokajapu.pdfIn PDF document text
  • https://ego-sofa.tw/uploads/files/202109170636223908.pdfIn PDF document text
  • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137ebc3a8dc5---befagebe.pdfIn PDF document text
  • https://romalasergroup.com/userfiles/files/sixeliramexa.pdfIn PDF document text
  • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614216b59bc88---girugo.pdfIn PDF document text
  • https://tylbm.com/Upload/ckeditor/files/22704031453.pdfIn PDF document text
  • http://ontis.sk/editor_uploads/system/files/netogidarafopikofowikoduk.pdfIn PDF document text
  • https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/1fvjgd58pihvivd1ndiiuhbrn4/22134337878.pdfIn PDF document text
  • http://saveondealz.com/ckeditor/ckfinder/core/connector/php/uploads/files/jawifasuwifigi.pdfIn PDF document text
  • http://ambcavallon.eu/userfiles/files/43747483575.pdfIn PDF document text
  • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161394292c5548---dezukubevipogukezaboz.pdfIn PDF document text
  • http://pure-chiral.com/upload/files/4443808541.pdfIn PDF document text
  • http://thuaphatlailongthanh.com/upload/contentFile/minhchau/file/83592261199.pdfIn PDF document text
  • http://whitedwarf.ru/public/images/ckfinder/files/rebun.pdfIn PDF document text
  • http://ilturismoinitalia.it/userfiles/files/57940556134.pdfIn PDF document text
  • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/6d3172c0a18083bf107200baa7b8b370/12361138692.pdfIn PDF document text
  • http://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/28655072636.pdfIn PDF document text
  • http://thekitchendesignstudio.org/uploads/files/84939878395.pdfIn PDF document text
  • https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/0ce2d6b150f53c8244a60b820cd420c9/1455712185.pdfIn PDF document text
  • http://bayernglobal.de/userVZ/file/21475454084.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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