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://cafij.co.za/YmrXLWy8?keyword=isentropic%20compression%20work%20calculation PDF link annotation

  • http://mcenterdk.ru/fck_editor_files/files/8659568353.pdfIn PDF document text
  • http://program-pro.ru/userfiles/files/xemikez.pdfIn PDF document text
  • http://apexibd.com/uploads/fck_uploads/file/jujapawinetibawemu.pdfIn PDF document text
  • https://hanomanberjaya.com/contents/files/topikojef.pdfIn PDF document text
  • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16246064b5f368---39169159188.pdfIn PDF document text
  • https://kgn.pl/files/file/45549324251.pdfIn PDF document text
  • http://bc-nosingtasting.com/bestanden/files/56036572875.pdfIn PDF document text
  • http://taiwangallant.com/uploads/files/202203221530142385.pdfIn PDF document text
  • http://domuran.pl/files/file/xidibesilejoviwumumukixu.pdfIn PDF document text
  • https://pk-decoranddesign.com/upload_file/files/nezubabemegapawog.pdfIn PDF document text
  • https://pyreneesjogja.com/kcfinder/upload/files/78248086528.pdfIn PDF document text
  • https://investincarpathians.eu/app/webroot/media/files/18240229553.pdfIn PDF document text
  • http://www.historialmarista.org/js/kcfinder/upload/files/dubidonode.pdfIn PDF document text
  • http://setouchi-bunkaisan.com/uploads/files/pegonigimejugarugefudejo.pdfIn PDF document text
  • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1620c5b4061ef4---9361300245.pdfIn PDF document text
  • https://gemwares.iceleajewel.com/userfiles/file/10109431619.pdfIn PDF document text
  • http://slbreakingnews.com/ckfinder/userfiles/files/jukatijorun.pdfIn PDF document text
  • https://congtydaihai.com/upload/files/89667350803.pdfIn PDF document text
  • https://equimat-cheval.fr/file/46715214467.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/162087aad558a1---51992935698.pdfIn PDF document text
  • https://adci.vn/data/upload/file/61937913114.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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