Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://irlanc.ru/uplcv?utm_term=download+buku+matematika+kelas+6+kurikulum+2013+revisi+2017+pdf PDF link annotation

  • https://purefeeling8.com/data/file/menejoduparudaje.pdfIn PDF document text
  • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/ae43ab23ff830d39c400faa11286599d/tumadijazeb.pdfIn PDF document text
  • http://immobiliareborghi.com/userfiles/files/60729854196.pdfIn PDF document text
  • http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/54619074341.pdfIn PDF document text
  • https://willes-gb.com/uploads//files/202108022347235544.pdfIn PDF document text
  • http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc0ef9d4cf---lalasajajosafojo.pdfIn PDF document text
  • http://ed-web.cz/userfilesfile/17629657292.pdfIn PDF document text
  • http://maslag.eu/userfiles/file/zusabiw.pdfIn PDF document text
  • http://lasfyy.com/uploadfile/file/20210706062126454.pdfIn PDF document text
  • http://gaishachuukobuhin.com/js/upload/files/sexolifinupogonubisuva.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078bd9a32c02---nizidimikujoboxagakun.pdfIn PDF document text
  • http://phutungtdc.com/upload/files/26047692490.pdfIn PDF document text
  • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609e722ce2027---doxojopawevajiveg.pdfIn PDF document text
  • https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/mdhfdhp24dstdqes9j5cf64nc7/gewopegu.pdfIn PDF document text
  • http://staropolski.net/Upload/file/7548923068.pdfIn PDF document text
  • http://agendatourvietnam.com/hinhanh/file/22789002491.pdfIn PDF document text
  • http://5mal4.de/moneyvidya/web/images/userfiles/file/77436990078.pdfIn PDF document text
  • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/681ab04c3fdaa55199ac4a2b65a347c1/438115471.pdfIn PDF document text
  • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/75cb6866bcc2ad1c061495f73b57fdfd/sorokasavuwafalumibux.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/ece83dcd3e1b58080c740576d716a0b2/43480999977.pdfIn PDF document text
  • http://styropapex.pl/userfiles/file/33900176997.pdfIn PDF document text
  • https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/780bac08f547eef4cb4f93328745a337/38083783727.pdfIn PDF document text
  • http://bjbtrh.com/files/pic/file/56152465687.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16111b94eaa1e7---bemake.pdfIn PDF document text
  • http://softwarefactory.nl/images/file/76010201591.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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