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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://pixomot.ru/uplcv?utm_term=my+mobile+qr+code PDF link annotation

  • https://taumed.kz/upload/2021/09files/210924033412014957ez0go.pdfIn PDF document text
  • https://hyundainhapkhau.vn/upload/files/gejevepebamizigenesuj.pdfIn PDF document text
  • http://cokhilegia.com/upload/files/jikigoxeduwakumov.pdfIn PDF document text
  • https://frontivo.ro/userfiles/file/89959310046.pdfIn PDF document text
  • http://makaroma.fr/upload/file/megomafegajupuba.pdfIn PDF document text
  • http://www.espaciocultivarte.com/ckfinder/userfiles/files/57729845843.pdfIn PDF document text
  • http://www.peritaonline.es/ckfinder/userfiles/files/1307064829.pdfIn PDF document text
  • http://aptekarynek.pl/zdjecia/fck/file/21345730410.pdfIn PDF document text
  • http://chinhlytailieuluutru.com/media/ftp/file/96298269201.pdfIn PDF document text
  • http://marcobernini.it/userfiles/files/26161530734.pdfIn PDF document text
  • http://www.sunriseacademy.in/ckfinder/userfiles/files/86808809266.pdfIn PDF document text
  • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/e5c7ecb637b091d025011b77427dc199/72426799584.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161421ed591f5c---27554729379.pdfIn PDF document text
  • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16144a9d0702b6---91065839929.pdfIn PDF document text
  • http://quimis.org/js/ckfinder/userfiles/files/fitodero.pdfIn PDF document text
  • https://asoriofrio.org/ckfinder/userfiles/files/38398948533.pdfIn PDF document text
  • http://prodottoitalia.eu/userfiles/files/golubiseduvosunowotuzama.pdfIn PDF document text
  • http://xhzhengli.com/upload/83700227030.pdfIn PDF document text
  • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142a7f1b1a5e---70897593774.pdfIn PDF document text
  • http://turagent007.ru/userfiles/file/98376787035.pdfIn PDF document text
  • https://saint-florentin.charcutier-traiteur.fr/ckfinder/userfiles/files/kegovibufivotodi.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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