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.
• AcroForm button with action trigger low PDF_ACROFORM_BUTTON
  PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
• 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://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/5a13c7734d8b3199e3d4fd380d934b89/8146256221.pdf In PDF document text

  • https://cordovajewelry.com/images/file/85399057404.pdfIn PDF document text
  • https://havanic.com/cache/fck_files/file/ziguma.pdfIn PDF document text
  • http://fdceta02.fr/catalogue_dynamique/file/35812082135.pdfIn PDF document text
  • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160900c33d2bff---58785024008.pdfIn PDF document text
  • http://brenno-tojestto.pl/userfiles/file/36911081647.pdfIn PDF document text
  • https://lifesmart.ro/ckfinder/userfiles/files/mulexe.pdfIn PDF document text
  • http://wjcopy.com/upload/files/pivisibivazaf.pdfIn PDF document text
  • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/jlnh69fhp1cb0664vak0536rl0/niromerusinote.pdfIn PDF document text
  • http://abwlanham.com/uploads/files/dojasiratiradolukusobaz.pdfIn PDF document text
  • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608885944c166---23566257155.pdfIn PDF document text
  • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/160746f8b46374---nogorite.pdfIn PDF document text
  • http://www.boldino-hotel.com/ckfinder/userfiles/files/vodulikiruvoxakonex.pdfIn PDF document text
  • https://dla-pracownika.pl/pliki_user/File/35143348771.pdfIn PDF document text
  • http://winfielddeli.com/ckfinder/userfiles/files/nebibasasukodunewaze.pdfIn PDF document text
  • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a48ac745f---99092474090.pdfIn PDF document text
  • http://moyamoya.center/images/hand_uploaded/files/46936613663.pdfIn PDF document text
  • http://friend5190.xyz/js/ckfinder/userfiles/files/74636120504.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16071014c90743---tizetiwomoxev.pdfIn PDF document text
  • https://orsam.org.tr/paketler/ckfinder/dosyalar/files/rogofid.pdfIn PDF document text
  • https://libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/mulivodegoxusudawaba.pdfIn PDF document text
  • http://originalavto.ru/userfiles/file/50117535819.pdfIn PDF document text
  • https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/ff8a75e88fc05e77344f375553ac4923/kebin.pdfIn PDF document text
  • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16076057e2be4e---zopot.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=how+do+you+say+how+was+your+day+in+sign+languagePDF link annotation
  • 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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