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://crewmak.ru/uplcv?utm_term=jak+sprawdzic+czy+ma+sie+wirusa+na+androidzie PDF link annotation

  • https://www.karelo.com/uploads/File/669054814.pdfIn PDF document text
  • http://karimeh.com/public/userfiles/file/1487416510.pdfIn PDF document text
  • https://salvatoredivilio.it/userfiles/file/zowututigigewaf.pdfIn PDF document text
  • https://beeshark.ro/app/webroot/files/userfiles/files/65522754734.pdfIn PDF document text
  • https://xn--bankkrtya-41a.hu/js/ckfinder/userfiles/files/84271401622.pdfIn PDF document text
  • https://latgalesamatnieki.lv/files/file/12155671363.pdfIn PDF document text
  • http://intelekt.biz/uploads/pages/files/pavovobaliviw.pdfIn PDF document text
  • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/a3e303aeb827f77e43cd04d27ed43804/66254819199.pdfIn PDF document text
  • https://www.wemservice.com/ckfinder/userfiles/files/72791470758.pdfIn PDF document text
  • http://drivescuolaguida.it/userfiles/files/42594385036.pdfIn PDF document text
  • http://www.ih-consultant.com/ckfinder/userfiles/files/jeriwadefikokoxexafanivej.pdfIn PDF document text
  • http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/gofaz.pdfIn PDF document text
  • http://amdind.com/userfiles/file/86943324677.pdfIn PDF document text
  • https://lesura.net/userfiles/file/wakoresufedodoxenedamodo.pdfIn PDF document text
  • http://nepalbestcargo.com/userfiles/file/63740967086.pdfIn PDF document text
  • http://ambvetbrashersclavoghisu.eu/userfiles/files/46997232187.pdfIn PDF document text
  • http://feminella.ro/upload/fck/jolobolitusut.pdfIn PDF document text
  • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161323af33416f---feponetoxetewisopuwebap.pdfIn PDF document text
  • http://chieucoingason.vn/files/93494281014.pdfIn PDF document text
  • https://paeonia.ch/userfiles/files/75193448718.pdfIn PDF document text
  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/vaq9at5k03tvm8eskbbu34g2p5/37557124281.pdfIn PDF document text
  • http://arucax.am/user_images/file/63706356045.pdfIn PDF document text
  • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/s89r1tq12383pisfrf9bmu9akh/38791968756.pdfIn PDF document text
  • http://travelbilet.ru/sites/default/files/file/momijago.pdfIn PDF document text
  • http://djapm.com/userfiles/file/9080266615.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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