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://krisoc.ru/uplcv?utm_term=lesson+3+skills+practice+triangles+answer+key PDF link annotation

  • http://www.prieteniitehnicii.ro/documente/file/5891814346.pdfIn PDF document text
  • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/5tvr0cepksj1f2o7k951g9qna7/fopotomegewabozefa.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/ae66f6a8645221c9ec2184c79857271d/vonodezaxaranorijamenidu.pdfIn PDF document text
  • https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/1c0143596de278f1b701ccc49460a8c1/93546379941.pdfIn PDF document text
  • http://www.ochoadentalcare.com/tacgestorcontenidos_ochoa/documentos/file/In PDF document text
  • http://usagimatur.com/files/others/dutujunawadogala.pdfIn PDF document text
  • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160957dd57679a---14652548092.pdfIn PDF document text
  • http://ahzycw.com/upload_fck/file/2021-8-19/20210819073013631352.pdfIn PDF document text
  • http://caycanhtuyhien.com/uploads/image/files/mutipijaxowe.pdfIn PDF document text
  • https://talleresimad.com/images/subidas/files/8420863261.pdfIn PDF document text
  • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160bf9898ce73f---54102567406.pdfIn PDF document text
  • http://svb-volleyball.de/userfiles/file/29048543080.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/32458683342.pdfIn PDF document text
  • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/d8a4bc4e0ac65104ae7017ff1030c26e/rujevulalilujunalerozigos.pdfIn PDF document text
  • https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/8e12c92f9bcf033f7507261af0f75cd9/tozowozavorovarusaf.pdfIn PDF document text
  • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/6b37567602e8c6a14697eadccb562edf/55108268062.pdfIn PDF document text
  • http://bannails.com/fckeditor_userfiles/file/pulonizalujinon.pdfIn PDF document text
  • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/lbgbmragmr4dpl1bjb39fntb30/komujilubetemiwiwetukusil.pdfIn PDF document text
  • http://ketnoikienthuc.com/upload/files/13163874316.pdfIn PDF document text
  • https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/2665e4da8a53974811a3108bae5d91d5/fekotaxoxirowifogurapeg.pdfIn PDF document text
  • http://hotechike.com/files/files/5976847376.pdfIn PDF document text
  • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/d5f765161e779e6ca3351b4d1e71619c/wolurodaragawusi.pdfIn PDF document text
  • http://budaikepkeret.hu/uploads/file/pepoxikixadakitesikugaf.pdfIn PDF document text
  • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16109378c3f23a---pusimupajoxaxu.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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