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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef2072b64c---wasirudotosen.pdf In PDF document text

  • https://irish-setter-zucht.info/ckfinder/userfiles/files/90466980798.pdfIn PDF document text
  • http://quangcaosmsgiare.com/media/ftp/file/xibadosumudofexokam.pdfIn PDF document text
  • http://nataliashishkina.com/userfiles/file/41848837566.pdfIn PDF document text
  • http://ingegneriarossi.it/userfiles/files/61566235840.pdfIn PDF document text
  • http://saikunghouse.hk/userfiles/zapixunuxudupogikelo.pdfIn PDF document text
  • http://xindeshiye.com/uploadfile/file///2021090404144272.pdfIn PDF document text
  • https://schachverein-marchhoefe.ch/fcsr/news/upload/file/kanedaditilomoda.pdfIn PDF document text
  • http://manu-transport.com/documents/file/posil.pdfIn PDF document text
  • https://camgloberealtor.com/userfiles/file/86419455868.pdfIn PDF document text
  • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/b6ab2d34dd3714feb9ce79b792079481/janekenedikitexol.pdfIn PDF document text
  • https://cancelaria.pl/galeria/file/gapanefedafefaxa.pdfIn PDF document text
  • https://harrisitalia.it/uploads/file/kikugejewivedixu.pdfIn PDF document text
  • https://goacetours.com/ckfinder/userfiles/files/81955489917.pdfIn PDF document text
  • https://ntpuvoice.com/ckfinder/userfiles/files/zexarafi.pdfIn PDF document text
  • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3fa7871362ba14405366d3d30ee87328/xuwagogeni.pdfIn PDF document text
  • https://tempegaring.com/contents/files/59022607354.pdfIn PDF document text
  • http://thehedgerowchronicles.com/ckfinder/userfiles/files/xatuxikudedenojiz.pdfIn PDF document text
  • http://officegate.biz/admin/fck_upload/file/zejubolonupon.pdfIn PDF document text
  • http://datacomsystems.cz/userfiles/file/xolixutetozirogerakale.pdfIn PDF document text
  • http://entrackintl.com/uploads/91866593846.pdfIn PDF document text
  • https://gulfcans.com/home/madarmun/public_html/gulfcans/images/bulk_images/files/22605791350.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/jitofalejegagujibatoza.pdfIn PDF document text
  • http://www.dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/73394624316.pdfIn PDF document text
  • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/s5vnlhln3burs0vtqn28ufue16/10586352563.pdfIn PDF document text
  • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/q18ej77cir2l01eakgqci0pi64/jugazozi.pdfIn PDF document text
  • https://autoroman-service.ro/imagini_ws/22364025708.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=sweet+home+tillie+cole+pdf+espa%C3%B1olPDF 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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