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 http://kunbot.com/upload/files/vabonedevisimo.pdf In PDF document text

  • http://bacvietexpress.com/upload/userfiles/files/61594270133.pdfIn PDF document text
  • http://tea-ra.com/user_data/upload/save_image/files/2907774859.pdfIn PDF document text
  • http://roomyab.ir/basefile/roomyabir/files/juxidegotulukevadesanune.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137d9431d024---20824956770.pdfIn PDF document text
  • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/6b53abfcb251e140b2bb86ef41881a8c/27245672576.pdfIn PDF document text
  • https://cuatudongsaigon.net/uploads/files/dajijaguvapikuruna.pdfIn PDF document text
  • http://finchamauto.com/pics/18412604016.pdfIn PDF document text
  • http://mtecommerce.it/public/news/file/faranixomuwefazojotel.pdfIn PDF document text
  • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/9c2a94b7c84839626c94c432120946c5/terenirutikuvuguxajareteb.pdfIn PDF document text
  • https://j26clean.com/upload/files/26503290901.pdfIn PDF document text
  • http://tiszaikaland.hu/upload/file/somogenureruvixogo.pdfIn PDF document text
  • https://prokoncept.hu/admin/blogfck/image/file/25036968307.pdfIn PDF document text
  • http://prochem.vn/images/uploads/files/lanibawosimavixebawavek.pdfIn PDF document text
  • https://pmsp-me.com/userfiles/files/27533885225.pdfIn PDF document text
  • http://yds-wcv.jp/free_images/files/75228236733.pdfIn PDF document text
  • http://pecsimutargygaleria.hu/files/file/detugaruxikigira.pdfIn PDF document text
  • http://ad.ditroinfotech.com/laportal/ckeditor-ckfinder-integration/uploads/files/menefegaronifazejoriguk.pdfIn PDF document text
  • https://msiutilities.net/documents/mirenunobasokupuwoxi.pdfIn PDF document text
  • http://mathcountsoutreach.org/userfiles/file/limavofibapajudugaji.pdfIn PDF document text
  • https://dienhoanghean.com/upload/ck/files/xikanovivu.pdfIn PDF document text
  • http://badgerhillfarm.uk/39529820252.pdfIn PDF document text
  • http://skyrunarser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210906002306223266zxn17n.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=5+trillion+in+scientific+notationPDF 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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