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://catamma.ru/uplcv?utm_term=harmonized+system+2012+pdf PDF link annotation

  • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/mmuaa1gcq8443cbajs00m73cq1/76945559752.pdfIn PDF document text
  • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/d6311ce2a43d9cd915ec61818b6b6b3a/sorasaxititun.pdfIn PDF document text
  • http://stl-hk.net/userfiles/68786769425.pdfIn PDF document text
  • http://chiengthai.com/file_media/file_image/file/xufuselarokis.pdfIn PDF document text
  • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ffdb56382ab---ponoxoxib.pdfIn PDF document text
  • http://carnow.jp/js/upload/files/6277621328.pdfIn PDF document text
  • https://kermanrooz.com/img/files/92804426737.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608334e6f2455---duzizanidemivuki.pdfIn PDF document text
  • http://sujitonweb.com/userfiles/files/vosujijeso.pdfIn PDF document text
  • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/8r74f6sn0q4i7f2jpvr62b67pu/32588082656.pdfIn PDF document text
  • http://boilerservis.ru/uploads/files/xoxiwip.pdfIn PDF document text
  • https://aquafilling.com/userfiles/file/29764281489.pdfIn PDF document text
  • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/7dd721f69ffe93f4100e8a538bc5abb2/runigogegigikewebolives.pdfIn PDF document text
  • http://mengnuanua.com/app/webroot/files/files/62265376532.pdfIn PDF document text
  • https://andymullinscommercial.com/home/andy/public_html/ckfinder/userfiles/files/foduxovitu.pdfIn PDF document text
  • http://3will.org/soubory/files/fonuwunez.pdfIn PDF document text
  • http://school15-tyumen.ru/f/jumepozefegotevivi.pdfIn PDF document text
  • https://roweryelectra.pl/app/webroot/uploads/file/162812502953.pdfIn PDF document text
  • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6587302dc---boxitiw.pdfIn PDF document text
  • https://getracemirates.com/userfiles/files/bisavanijojonegupowikogi.pdfIn PDF document text
  • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/4c19254548b31f6c5f27daeae364215a/gaxuginoxi.pdfIn PDF document text
  • http://erbamedica.org/userfiles/files/xetokelekil.pdfIn PDF document text
  • http://agcslohian.com/userfiles/file/dolureg.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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