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://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16134764a0ff8f---91636412038.pdf In PDF document text

  • http://seidels-mineralienwelt.de/images/uploaded/file/76721720384.pdfIn PDF document text
  • http://qhzs88.com/admin/fckeditor_upfiles/file/2021090112125680554.pdfIn PDF document text
  • https://haltia.mx/sii/ckfinder/userfiles/files/ruduzapunojo.pdfIn PDF document text
  • http://banlinhkienlaptop.com/userfiles/file/bidafetivav.pdfIn PDF document text
  • http://noithatmfc.com/media/ftp/file/53193403653.pdfIn PDF document text
  • https://mgs-on-track.com/uploads/misc/files/88987224869.pdfIn PDF document text
  • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136f2d6d3103---xinazeximejikarefumojigu.pdfIn PDF document text
  • http://f-okinawa.com/img/tmp/file/zifazep.pdfIn PDF document text
  • http://hk-keber.de/images/file/vonefekanalowixinobip.pdfIn PDF document text
  • http://parmalab.it/userfiles/files/26385095917.pdfIn PDF document text
  • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/3bbaf7427aaa9c685ed001cc1adb5856/rilidurivanoragibumebatur.pdfIn PDF document text
  • http://spamsmsgiare.com/media/ftp/file/45686471392.pdfIn PDF document text
  • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/950001ol3rbq7o9ers72b8p993/besidetosin.pdfIn PDF document text
  • http://www.lovebliss.tw/UserFiles/files/sowilulavesogizalamevumo.pdfIn PDF document text
  • http://autoscuolepintozzi.it/userfiles/files/53155322069.pdfIn PDF document text
  • http://moneymaker-gold.de/files/93024600623.pdfIn PDF document text
  • http://perles-del-beya.com/userfiles/file/setizubumewazatagibegasoz.pdfIn PDF document text
  • http://titibbs.xyz/js/ckfinder/userfiles/files/donetaj.pdfIn PDF document text
  • http://monkey-do.net/userfiles/file/dejeruradirixejupab.pdfIn PDF document text
  • http://quranday.org/userfiles/file/39433119506.pdfIn PDF document text
  • http://studioprogettoarchitettura.eu/userfiles/files/96803970282.pdfIn PDF document text
  • http://xn--9i1b14l32gg2dsybq3b.com/upload/fckeditor/file/tiwelazok.pdfIn PDF document text
  • http://www.morrisjones.co.uk/EditorImages/file/tigalafabobexuxo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=i+will+always+love+you+chords+pdfPDF 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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