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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://smidgel.ru/uplcv?utm_term=gta+sa+mods+apk+download PDF link annotation

  • http://www.bargiel.com.pl/ckfinder/userfiles/files/76821729182.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/gosedat.pdfIn PDF document text
  • http://transchem-tech.com/Uploadfiles/files/25117283976.pdfIn PDF document text
  • https://alharithiforcameras.com/ckfinder/userfiles/files/91448937735.pdfIn PDF document text
  • https://remoteyourstaff.com/calisma2/files/uploads/17759576304.pdfIn PDF document text
  • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/161332a07c60f1---91863395331.pdfIn PDF document text
  • http://crocepadrekolbe.it/userfiles/files/vuwigituviwulusaz.pdfIn PDF document text
  • https://sportcity.bg/webroot/img/content/files/digujigekefo.pdfIn PDF document text
  • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16143fbee5c71f---govadunetasevakel.pdfIn PDF document text
  • https://landtop.com/filespath/files/20210929050644.pdfIn PDF document text
  • https://www.potravinyav21.cz/ckfinder/userfiles/files/16308779309.pdfIn PDF document text
  • https://citrasas.com/ckfinder/userfiles/files/jufetefewilotekuzasad.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614b8da235918---67099883370.pdfIn PDF document text
  • https://geniodelweb.com/file/608037644.pdfIn PDF document text
  • http://chretkinia.pl/userfiles/file/29357215896.pdfIn PDF document text
  • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1b7d12a13---86164837004.pdfIn PDF document text
  • https://galedo.cz/www/data/cms_files/files/kikibinopalin.pdfIn PDF document text
  • http://chemicalengineers.ie/images/pexofuve.pdfIn PDF document text
  • https://gkatsov.com/userfiles/file/fivulipa.pdfIn PDF document text
  • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/9f68fcf370b0af9327c92dd4042ad7c9/50202925246.pdfIn PDF document text
  • http://boldogelet.hu/media/volaxufejowila.pdfIn PDF document text
  • https://www.uflo.edu.ar/ckfinder/archivos/documentos/gasote.pdfIn PDF document text
  • http://www.optimizecost.com/admin/ficheros_fckedit_subidos/jeravuvawifuzisu.pdfIn PDF document text
  • http://zvezda-rostov.ru/ckfinder/userfiles/files/35050815948.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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