Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://oniceh.ru/uplcv?utm_term=student+exploration+titration+worksheet+answers PDF link annotation

  • http://www.yoko-ono.be/images/userfiles/file/67566089511.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/7skqif113qnlkmhpgljs3pvbh5/ruvonawiwevor.pdfIn PDF document text
  • https://davaocarrental.com/images/file/13794966218.pdfIn PDF document text
  • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16094583966d0c---91627657759.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084a94d24b4a---lexusonudixiv.pdfIn PDF document text
  • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac48e126fe7---12996092889.pdfIn PDF document text
  • http://trongtinpc.com/luutru/files/lepeziribakujafuso.pdfIn PDF document text
  • http://ccspevents.com/clients/24998/File/sizidotisude.pdfIn PDF document text
  • http://wang023spa.com/userfiles/202107file/2021070519002570554.pdfIn PDF document text
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607075e8966f3---xuwebizedupamusuj.pdfIn PDF document text
  • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608095ef0c793---konivixozepi.pdfIn PDF document text
  • http://drapikowski.pl/uploaded/fck_files/file/lixodazusivamovaka.pdfIn PDF document text
  • https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/0f32135ac407d2a03bf65455b4b42c1f/vemisudifenekolov.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e595e3acce0---40697667366.pdfIn PDF document text
  • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/cc97e45f5b6f302b3086cf288d8c97fd/nemeturiju.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a84fc68dc---76999311485.pdfIn PDF document text
  • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/fd7f512179e7c3f8e56008e01af987ae/45892480507.pdfIn PDF document text
  • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/a59e7ce57dede1ec876310cd83e6024c/97840021973.pdfIn PDF document text
  • https://firsatpin.com/calisma2/files/uploads/18253113569.pdfIn PDF document text
  • http://fence-alarm.com/userfiles/files/wajozaj.pdfIn PDF document text
  • https://havanic.com/cache/fck_files/file/75788731212.pdfIn PDF document text
  • https://jetaime-shop.com/files/29051715470.pdfIn PDF document text
  • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160898549a9fd9---gilutodilezidutap.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba2c5b25c94---koriwekumefera.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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