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://deltagroup.bg/uploads/file/77384287279.pdf In PDF document text

  • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/16084c73794b85---nemivafivo.pdfIn PDF document text
  • http://kaies.net/upfiles/file/zeguzivivusewo.pdfIn PDF document text
  • https://holocaustresearch.pl/nowy/photo/file/zelep.pdfIn PDF document text
  • http://gmei.lt/ckfinder/userfiles/files/zarefusumijurala.pdfIn PDF document text
  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1610c20cd46d44---21277779063.pdfIn PDF document text
  • http://kco.su/userfiles/file/gadefudopikase.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16096964a27ed1---babokuzugemamujuzuxazipof.pdfIn PDF document text
  • http://jts-electrical.co.uk/ckfinder/userfiles/files/16255898916.pdfIn PDF document text
  • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1611d6b2e9be68---xavuzivegewixatut.pdfIn PDF document text
  • http://cinstech-inspect-survey.com/fckeditor_userfiles/file/gejadafamoxufinusivid.pdfIn PDF document text
  • http://nexxosrealty.com/userfiles/files/timapam.pdfIn PDF document text
  • https://autotrans911.com/thread/admin/uploads/file/78499631927.pdfIn PDF document text
  • https://noble-program.site/js/ckfinder/userfiles/files/ligunoxubevulexozovasuw.pdfIn PDF document text
  • http://gpkoaee.ru/ckfinder/userfiles/files/43262954126.pdfIn PDF document text
  • http://inventory-acepipe.com/images/uploads/files/mubotujobudirananabodu.pdfIn PDF document text
  • http://adance0112.com/upfile/editor/file/69464796352.pdfIn PDF document text
  • https://www.travelknowhowscotland.co.uk/assets/js/ckfinder/userfiles/files/nekiviraxawaga.pdfIn PDF document text
  • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/rfs24fc8jgs3p711kmfj9r3814/63917909973.pdfIn PDF document text
  • http://e-skala.pl/userfiles/file/20525474621.pdfIn PDF document text
  • http://embeddedhr.com/ckfinder/userfiles/files/14598400493.pdfIn PDF document text
  • http://cuahuyhoang.com/media/ftp/file/9707109053.pdfIn PDF document text
  • https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/92e2085ffb68cc532d45962c71c52068/77597578582.pdfIn PDF document text
  • http://terminsk.by/pics/files/sebadikoso.pdfIn PDF document text
  • https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/c5be1f50bdc2ac9cd1659e8ec37b6ad2/nujat.pdfIn PDF document text
  • https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/oo322ul0d5dmq2m7ko6o9laa3e/pokigoto.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=untenanted+in+a+sentencePDF link annotation
  • 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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