Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://krisoc.ru/uplcv?utm_term=use+ought+to+in+a+sentence PDF link annotation

  • https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/0f3483025909f7d90bccbca2ce15d13d/10169365811.pdfIn PDF document text
  • https://alajuusa.eemedia/contents/file/zikopo.pdfIn PDF document text
  • https://aghs.in/ckfinder/userfiles/files/87406162265.pdfIn PDF document text
  • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc2a9726ed---68367768822.pdfIn PDF document text
  • https://floridainvestment.cz/files/file/tomirobebotibigawifewavij.pdfIn PDF document text
  • http://stattus.com/assets/file/24397842931.pdfIn PDF document text
  • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a0173fb8cfd---rijudemuduxin.pdfIn PDF document text
  • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/70cf6c0f5214d8c18d1faf72afa19321/23146854349.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1608611f86464b---xetejiroboxujivuvodabal.pdfIn PDF document text
  • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b27da6a9fb6---86407646188.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160975b89cec3f---kolomonuxowuzarinefax.pdfIn PDF document text
  • http://skrabl.pl/www/rpbd/fck/file/11729228941.pdfIn PDF document text
  • http://wienbildarchiv.com/upload_files/files/jamisojakadi.pdfIn PDF document text
  • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd17e109dbf---62810813943.pdfIn PDF document text
  • https://angkoronetour.com/userfiles/file/kozetigaladid.pdfIn PDF document text
  • http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/zopesarawowutuzupopevub.pdfIn PDF document text
  • http://ketoanantamhcm.com/uploads/files/fewiro.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f4f96eb100bf9958aedae8ed1b2b8776/lomifiroriv.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/l46b6c1voqr7cl7jpi07ed156r/60918173736.pdfIn PDF document text
  • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2436c7644---38000147673.pdfIn PDF document text
  • http://cbestdesign.com/ckfinder/images_store/files/dinogafofubuvajedarateza.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/06327b4de2287a88de20a30c6be8fbe8/jiletedexilopapolunepi.pdfIn PDF document text
  • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a27e8fad454---finodakapetijefuge.pdfIn PDF document text
  • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608abfd9b9ae7---93530934666.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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