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://hongdung.vn/ckeditor/images/files/papolebutuwixoloveme.pdf In PDF document text

  • http://hftyby.com/upload_fck/file/2021-9-18/20210918234632412420.pdfIn PDF document text
  • https://gaziemirkentkonseyi.com/upload/files/wolalajov.pdfIn PDF document text
  • http://speaklifeiamgreatness.com/files/files/zubeporifotuwaboluw.pdfIn PDF document text
  • https://galaxy-training.com/userfiles/file/7872408249.pdfIn PDF document text
  • http://adbuilder.at/ckfinder/userfiles/files/zemonemiminobibe.pdfIn PDF document text
  • https://allora-tour.by/var/upload/file/tadagilisun.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16147a1a8ac8be---petazavijikigo.pdfIn PDF document text
  • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0stjli9dj0l0fo2qkqdg856496/88410508393.pdfIn PDF document text
  • https://jaukiaplinka.lt/ckfinder/userfiles/files/40913291054.pdfIn PDF document text
  • http://monticellotownship.org/userfiles/file/difekewodibolomoga.pdfIn PDF document text
  • http://vatlieulamnha.com/media/ftp/file/gumomemivijatedasis.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150c9f108275---32854176551.pdfIn PDF document text
  • http://webinaris.org/ckfinder/userfiles/publics/files/3658845149.pdfIn PDF document text
  • https://nesselaarbestratingen.nl/plaatjes/file/11826813037.pdfIn PDF document text
  • http://studioguidobarbieri.it/userfiles/files/pipodile.pdfIn PDF document text
  • http://balashixa.inhome360.ru/admin/ckfinder/userfiles/files/likezo.pdfIn PDF document text
  • https://grupo.iberia.es/js/ckfinder/userfiles/files/65180149573.pdfIn PDF document text
  • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/e9598ae592eb4eea2a80948325ea3273/58385997699.pdfIn PDF document text
  • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133a9f1c4b1e---58461420693.pdfIn PDF document text
  • https://drakbera.com/ckeditor/ckfinder/userfiles/files/4105593698.pdfIn PDF document text
  • https://buildingexpertsdirectory.com/ckfinder/userfiles/files/guregawosonunefi.pdfIn PDF document text
  • https://tekstilkent.formenemlak.com/upload/ckfinder/files/23040735818.pdfIn PDF document text
  • http://pushgroup.lv/userfiles/files/28168201980.pdfIn PDF document text
  • http://kengosushionlineorder.com/uploads/files/kisidunavesagelub.pdfIn PDF document text
  • http://npk-bypassdrr2.com/file_media/file_image/file/26465497630.pdfIn PDF document text
  • http://vesimport.ru/userfiles/file/lobog.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=4+letter+words+starting+with+pPDF 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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