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://krisoc.ru/uplcv?utm_term=free+fire+low+mb+download+rampage PDF link annotation

  • http://golfvillageonline.com/userfiles/file/40469897781.pdfIn PDF document text
  • http://www.elstar.ru/uploads/files/kusovuwapawijisuv.pdfIn PDF document text
  • https://webtechnocrats.com/upload/file/9853847889.pdfIn PDF document text
  • http://master-sign.ru/ckfinder/userfiles/files/96136809672.pdfIn PDF document text
  • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/ab233bd39bb585ad732a55caa538ce19/62726801833.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/rcdjqf8hkdidkrnmg86u9h14in/puwiresidejiwogajinisip.pdfIn PDF document text
  • https://phuquiland.com/upload/files/92738645308.pdfIn PDF document text
  • https://hw-power.com/uploads/ckfiles/files/6150381842f7a.pdfIn PDF document text
  • https://corcreation.twbiz.me/data/fckeditor/files/20210912_063242.pdfIn PDF document text
  • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/e542ffa7b99370c805585f1a4067b642/nitolokag.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16134698d8aa44---1984899000.pdfIn PDF document text
  • https://bnbtravels.com/ckfinder/userfiles/files/89341703871.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/kigadukupavavudixixixonin.pdfIn PDF document text
  • http://www.elstar.ru/uploads/files/24532581813.pdfIn PDF document text
  • https://xn--z4qq44i.tw/upload/actfiles/52901821290.pdfIn PDF document text
  • https://diamond-marketing.cz/soubory/vuzomibavixufawawu.pdfIn PDF document text
  • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161300a4b54396---72083091096.pdfIn PDF document text
  • https://pu-sk.com/app/templates/js/ckfinder/userfiles/files/wefiledawerebogusatidatiw.pdfIn PDF document text
  • http://atdawnwelift.com/userfiles/file/kixanojomovusanop.pdfIn PDF document text
  • https://aedwea.com/upload/foto/kuxikefilowalunaporeza.pdfIn PDF document text
  • http://gramercy-grand.ru/files/file/xenojepet.pdfIn PDF document text
  • http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/sefuzumodaxokobodos.pdfIn PDF document text
  • https://happyfun.tw/uploads/files/202109210542485039.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/ef1f29b6b7ffa9702c18bafe84c463a2/sagilafokegilovunevifab.pdfIn PDF document text
  • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/11885b583d24e8556f42445089c0d1a9/4627497314.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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