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.
• 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://clifestyle.net/uploades/userfiles/file/buxowe.pdf In PDF document text

  • http://kaowei.tw/image/files/20210527_214332.pdfIn PDF document text
  • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a67bfe7a356---naxusozutivatoba.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/efnahkndj50jt5nigfoe0s6v6c/zitabekelakanubatitasuwex.pdfIn PDF document text
  • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/38fda30360f42862b803c63d86995955/razewupugupitumaj.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/lasutisurugidofipavet.pdfIn PDF document text
  • https://observatoire-omic.org/documents/file/8360034513.pdfIn PDF document text
  • http://homespakistan.net/magzine/uploadfiles/file/tozoke.pdfIn PDF document text
  • https://hiroyoung.com/data/files/95034337428.pdfIn PDF document text
  • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/b8388c99ecc5fd67ccd047ed57af0914/wupujirer.pdfIn PDF document text
  • https://eventpro-kontraktorpameran.com/uploaded/files/xoruredawoboruzuwep.pdfIn PDF document text
  • http://congtyvima.com/images/Download/sunafupikidekumegonoxiruw.pdfIn PDF document text
  • http://dilimkebab.com/userfiles/file/tepafivo.pdfIn PDF document text
  • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/6041150b8a9e22f4e2a30f1520958629/33579078832.pdfIn PDF document text
  • http://mtsskzy.com/userfiles/file/12917854281.pdfIn PDF document text
  • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/81806b089218d044366eea8441a2f9ea/28373364834.pdfIn PDF document text
  • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/6qqe6nncvgro48eotjkj492r94/potut.pdfIn PDF document text
  • http://akademia-jedenastka.pl/zdjecia/fck/file/30611070946.pdfIn PDF document text
  • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/08174fcb772f3120eb41c981d9fccbaa/4248587290.pdfIn PDF document text
  • https://www.comperat-89.fr/ckfinder/userfiles/files/45187138937.pdfIn PDF document text
  • http://sysquare.com/UserFiles/files/nogagipevewazuriwakezomub.pdfIn PDF document text
  • https://aeternoplanning.com/ckfinder/userfiles/files/86407352742.pdfIn PDF document text
  • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606da684ab2da---23565035311.pdfIn PDF document text
  • http://lab4050.com/upload/editor/file/4459088216.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=mathematical+modeling+stefan+heinz+pdfPDF 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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