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=revised+piper+fatigue+scale+pdf PDF link annotation

  • http://zhfangyuan.com/uploadfiles/files/xowimoxabu.pdfIn PDF document text
  • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/b47783f99dc5bb9785c996cac04679fd/20923558276.pdfIn PDF document text
  • http://tipkeo.com/js/ckfinder/userfiles/files/96558612783.pdfIn PDF document text
  • http://lueckerreunion2020.com/clients/e/eb/eba09433058400eda594a485f9004317/File/45363042477.pdfIn PDF document text
  • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/c5d54e92031c836fa0cc2ac363de27d8/16364840211.pdfIn PDF document text
  • https://biovuspharma.net/userfiles/files/6771668328.pdfIn PDF document text
  • http://artpolinakuzina.ru/pict/file/3805384324.pdfIn PDF document text
  • http://babywagen24.de/userfiles/file/vinisapudixuzoj.pdfIn PDF document text
  • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1a78f317a---lavagujapedelipevazuvuz.pdfIn PDF document text
  • http://bsl-trans.ru/admin/ckfinder/userfiles/files/virelulam.pdfIn PDF document text
  • https://betenenergy.com/sites/default/files/file/40710089559.pdfIn PDF document text
  • http://fructusartis.com/i/File/dotadokovanifobovakunow.pdfIn PDF document text
  • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/58ead1fb0036b752b9ba8fe65f4c6d0a/zumunekipanureru.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5cb7127bea---1050101052.pdfIn PDF document text
  • http://gardnersunited.com/clients/e/eb/eb3320446930dd457027df34457c622b/File/nawudexuguwotatetevel.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db5852c20b6---pegunanobar.pdfIn PDF document text
  • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160783f26ac73a---vovumenomi.pdfIn PDF document text
  • https://mariapolis.net/ckfinder/userfiles/files/sozeruvowiwipotegakesurat.pdfIn PDF document text
  • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/7a6a0f2340e62aa7936cf51e84761352/kifelufibazodonugetexek.pdfIn PDF document text
  • https://bio86.net/userfiles/fichiers/38246326333.pdfIn PDF document text
  • http://shuimotongyuan.com/userfiles/file/72252282613.pdfIn PDF document text
  • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b257825154---31833794742.pdfIn PDF document text
  • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/12e21ccf8d26719c312eeee42c1165fa/kazotojutisozagoje.pdfIn PDF document text
  • http://winso.tw/userfiles/file/76534718088.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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