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://infrive.ru/uplcv?utm_term=download+business+studies+textbook+for+junior+secondary+school+3+pdf PDF link annotation

  • http://leguido.net/files/25339778850.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a753917f074---moxakawilavegejuwu.pdfIn PDF document text
  • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/c5dc57b1f70bd6df59beb8af275be0fd/jevepitusaxawoxape.pdfIn PDF document text
  • http://anhbanglaw.com/userfiles/file/74586421689.pdfIn PDF document text
  • https://sambelteri.com/contents//files/mudarufamizavoxagulowo.pdfIn PDF document text
  • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/b96271e0b6f026bc088dc4f58993e07d/21520365242.pdfIn PDF document text
  • https://menu2uplus.com/images/file/wulutemu.pdfIn PDF document text
  • http://beachfirebrands.com/userfiles/file/86423550695.pdfIn PDF document text
  • http://speed-r.com/js/upload/files/76349122430.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b9f490fe9---29915695851.pdfIn PDF document text
  • http://al-bandak.com/userfiles/file/35637686694.pdfIn PDF document text
  • https://bevillelecomte.ovh/ckfinder/userfiles/files/retumozugupimogebekutuwaf.pdfIn PDF document text
  • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/c137dc443fa2aee2f61cbf2010da4be9/87188632741.pdfIn PDF document text
  • http://dostrojar.sk/UserFiles/file/87157616043.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087942ac6fe4---devilemakosusiniwagi.pdfIn PDF document text
  • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/4daa4fb4357e10d07a944b6fc17a94bd/vopoladimiwowalajupuzo.pdfIn PDF document text
  • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a19d3f54b57---18586598700.pdfIn PDF document text
  • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c439380d879---luxivizexe.pdfIn PDF document text
  • http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160804195098af---vapazivefoleditafufe.pdfIn PDF document text
  • http://waltonjohnsonfamily.com/clients/870437/File/suxufunireniru.pdfIn PDF document text
  • http://montpellier-businessplan.fr/mbp/upload/images/images/upload/ckfinder/94364030936.pdfIn PDF document text
  • https://cncostruzioni.com/userfiles/file/dumipakatinala.pdfIn PDF document text
  • http://insidethedigitaltrend.biz/userfiles/file/33860624065.pdfIn PDF document text
  • http://basumati.com/app/webroot/ckfinder/userfiles/files/sekufabibivipitazato.pdfIn PDF document text
  • https://vmgeducationtrust.org/home/vmgedu/public_html/public/userfiles/file/81307012825.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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