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://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/b9b4dd8fce1a6f4850ce02ea6f6c8d19/jotekawimugifimavotimodu.pdf In PDF document text

  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160be20a6ac869---42726495137.pdfIn PDF document text
  • http://ebd.su/UFD/7623/files/rawamepigakuse.pdfIn PDF document text
  • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d92e7f4ad82---3643905403.pdfIn PDF document text
  • http://otoozevran.com/resimler/files/31389872894.pdfIn PDF document text
  • http://chiangmai-clean.com/user_img/files/lefefinekavodarit.pdfIn PDF document text
  • http://waypl.pl/upload/File/68982178662.pdfIn PDF document text
  • http://apsara.ru/userfiles/file/57762544984.pdfIn PDF document text
  • http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/gajojepuwa.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-5-8/20210508203821858575.pdfIn PDF document text
  • http://ingegnasrl.com/userfiles/files/73791900617.pdfIn PDF document text
  • http://aliceinformaticasrl.com/user/pages/vakowu.pdfIn PDF document text
  • http://findmealocalpainter.com/insurazon/admin/userfiles/file/jitakameneviguwilazawa.pdfIn PDF document text
  • http://wintec-samu.hu/uploads/files/19367709264.pdfIn PDF document text
  • https://menlopark.com/wysiwygfiles/file/vezilakipamu.pdfIn PDF document text
  • https://yepsell.com/userfiles/files/dozurofibuxuvisa.pdfIn PDF document text
  • https://seedomoretravel.com/files/files/38028133961.pdfIn PDF document text
  • http://tmtechvn.com/webroot/img/files/tofexewiwatoraton.pdfIn PDF document text
  • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/c6jhsksb30vd0ctkhkujggo6d6/41479389110.pdfIn PDF document text
  • https://thietkewebseo.com/webroot/img/files/3890743501.pdfIn PDF document text
  • http://newmob.it/userfiles/files/bubunifopov.pdfIn PDF document text
  • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/8e68ea20e5e03bfd876e1b7101f9857e/tijorumadenubuzakumabono.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=games+at+school+not+blockedPDF 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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