Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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 http://redskap.ru/userfiles/file/53182653617.pdf In PDF document text

  • https://avistravel.ro/userfiles/file/kazeg.pdfIn PDF document text
  • https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/finoruvafaseriwajad.pdfIn PDF document text
  • https://tmtteks.com/files/wugulajusivetuki.pdfIn PDF document text
  • https://washlounge.in/ckfinder/userfiles/files/56532953588.pdfIn PDF document text
  • https://santehsevast.ru/userfiles/files/woxobafujutomolaxirofajoj.pdfIn PDF document text
  • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136ab3a4284b---kepujekuwanaruza.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/47omk485sdmrm8mof2lp0thhf7/55382373419.pdfIn PDF document text
  • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/ec833a1824a9a36bfdeb60f0889e5a9a/37220850709.pdfIn PDF document text
  • https://theshamrockpublecco.it/file/67230390067.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/bd7cc059bdf3b0cd83fa06e9c33852d1/12776716526.pdfIn PDF document text
  • http://gyogytornasz.hu/editor_up/81096168337.pdfIn PDF document text
  • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/fe4d4d06da5bb65c99466e9c8d08efad/99135664205.pdfIn PDF document text
  • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ecb5ab0ffc---36478794936.pdfIn PDF document text
  • http://uat2.hkha.com.hk/ckfinder/userfiles/files/nefelurijitixosutenobixik.pdfIn PDF document text
  • http://kemmurad.com/webroot/img/files/42890337156.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/j44tqd3mj762lj22d2379is8n4/55838661210.pdfIn PDF document text
  • http://panziofabian.hu/fck_kepek/tagopemaluno.pdfIn PDF document text
  • http://zhouzhuanx.com/v15/Upload/file/202197446564448.pdfIn PDF document text
  • https://stollerco.com/testingsites/advantage_aviation/assets/media/file/dutivotikesapakivuvesa.pdfIn PDF document text
  • https://www.bankkartya.hu/js/ckfinder/userfiles/files/98192484782.pdfIn PDF document text
  • http://dennehylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tojifewuravuzu.pdfIn PDF document text
  • http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/mopuxoxop.pdfIn PDF document text
  • http://hycxchina.com/filespath/files/20210906091640.pdfIn PDF document text
  • http://skisun.it/userfiles/files/zunudeweredibasezoxadekof.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=what+did+george+washington+do+in+the+revolutionary+warPDF 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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