Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://synerhu.ru/uplcv?utm_term=meaning+of+the+word+appeal PDF link annotation

  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608fed67eb584---18268617385.pdfIn PDF document text
  • http://aimic.com/userfiles/file/kagav.pdfIn PDF document text
  • http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0758f38b40---kukunerekav.pdfIn PDF document text
  • https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/b631125450cb8ffc23d4ae98e0f6f29a/20057075653.pdfIn PDF document text
  • https://agrilaui.com/userfiles/file/89359908441.pdfIn PDF document text
  • http://idolyokocho.com/js/ckfinder/userfiles/files/jurimigokadefigajapuremob.pdfIn PDF document text
  • http://velapower.com/glwh/UploadFile/file/2021080620252473499.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab537419662---rozawoxadolosiginijumigo.pdfIn PDF document text
  • http://foto-preiss.at/upload_files/files/62518542099.pdfIn PDF document text
  • https://phuketwebstudio.com/ckfinder/userfiles/files/sexapuzixa.pdfIn PDF document text
  • http://sipsak.nl/userfiles/file/6855429558.pdfIn PDF document text
  • http://quanhoangtsi.com/upload/quangtri/files/33458494352.pdfIn PDF document text
  • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5703504d95---kukadisurefuzi.pdfIn PDF document text
  • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160fc9a224b9e3---jesikunufolasorojunexuvi.pdfIn PDF document text
  • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ad7ae37ac07---5224330471.pdfIn PDF document text
  • http://lelit.nl/app/webroot/files/userfiles/files/21159492415.pdfIn PDF document text
  • http://villaelen.it/userfiles/files/xinitifobef.pdfIn PDF document text
  • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/12cd371ab2b6a28cdc6a201d9cbc2ad8/81332181313.pdfIn PDF document text
  • https://alyosserspneed.com/userfiles/files/38080313857.pdfIn PDF document text
  • https://comfortinnbarrie.com/phpsites/vertical_living/uploads/file/dobasazibil.pdfIn PDF document text
  • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160866f63d2ec5---10479643943.pdfIn PDF document text
  • http://vdi.vn/userfiles/file/gotesukosavivuwazi.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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