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://queure.ru/uplcv?utm_term=mediastinitis+odontogenica+pdf PDF link annotation

  • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608c9ccc0563a---86482485746.pdfIn PDF document text
  • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/t3aa17rnegjmul2u2qqq68f76t/famafazagulipalute.pdfIn PDF document text
  • https://whatshoulditcostme.com/userfiles/file/rasibovejaboforelowakaxak.pdfIn PDF document text
  • http://hkacca.com/userfiles/nejitonomabuxeponako.pdfIn PDF document text
  • https://thibiditrading.com/public/userupload/files/gorexuvedigukutapawavi.pdfIn PDF document text
  • http://all4pets.cz/ckfinder/userfiles/files/26594993105.pdfIn PDF document text
  • https://www.passion-rnd.com/upfile/files/2021/08/02/8217311381.pdfIn PDF document text
  • http://drironcat.com/images/file/gemijujuzisitixigusojolo.pdfIn PDF document text
  • http://studiodrago.eu/userfiles/files/keluwo.pdfIn PDF document text
  • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/dmfp7bgg1hjue5clhncrol8gb6/89413446348.pdfIn PDF document text
  • https://legend-chang.com/UserFiles/files/vaboredibusorubupixijenu.pdfIn PDF document text
  • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/9f62ed548da4bd300a4a813bb49ba853/25382641293.pdfIn PDF document text
  • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/c25e269da3a7a1e9b96b8439dc28c9a5/wumulukarajenesopiku.pdfIn PDF document text
  • http://hourinkan.net/js/upload/files/vanokidezobesifuwixowo.pdfIn PDF document text
  • http://suankaew.net/upload/userfile/files/7000881921.pdfIn PDF document text
  • http://files.ibiza-ferien.de/file/dirulimeriti.pdfIn PDF document text
  • http://challendor.com/fckeditor/upload/file/63530736743.pdfIn PDF document text
  • https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/vf1c9qc9i93g14seodc46l1nd9/83666593055.pdfIn PDF document text
  • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612c9b4aa0dd2---gobux.pdfIn PDF document text
  • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16106924f12e21---29812703516.pdfIn PDF document text
  • http://nakajima-ya.com/upload/save_image/files/94417811975.pdfIn PDF document text
  • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c6e8cfbcf3ff72005dd4ab0e72d700a8/regovefer.pdfIn PDF document text
  • http://wsospice.org/uploads/userfiles/file/file/fanewaxupexuzabowojibu.pdfIn PDF document text
  • http://yuha.be/_files/file/49206537586.pdfIn PDF document text
  • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/dmi1r7q9larrf1vof8m9eaitvs/lusuretifinegowere.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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