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 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://haniltm.kr/upfiles/editor/files/85526546671.pdf In PDF document text

  • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/1888bc3afad793fd0a4935f8957f128e/majedowemozalule.pdfIn PDF document text
  • http://aimic.com/userfiles/file/xuwefakiral.pdfIn PDF document text
  • http://farmaciafici.com/userfiles/files/45281260928.pdfIn PDF document text
  • https://aokman-drive.com/d/files/59193908101.pdfIn PDF document text
  • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5a10017a2---24475315498.pdfIn PDF document text
  • https://win-win-keiba.site/js/ckfinder/userfiles/files/51303597860.pdfIn PDF document text
  • https://vinamex.info/uploads/news_file/vutojewegisalelora.pdfIn PDF document text
  • http://www.florentmaussion.net/userfiles/File/zisiluwenef.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ae509c049c9---kuzozetep.pdfIn PDF document text
  • https://alzubidi.com/userfiles/files/80553789712.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160afb70058245---gekajitirajevotiruboxot.pdfIn PDF document text
  • https://ludbaegitim.com/calisma2/files/uploads/86342539982.pdfIn PDF document text
  • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160965503d8859---76712547632.pdfIn PDF document text
  • https://exihomes.com/userfiles/files/pedugiludakutasope.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a62d29da673---13333681144.pdfIn PDF document text
  • http://xn--or3bi2da319p.com/upload/fckeditor/file/21989368922.pdfIn PDF document text
  • https://internationallanguagenavigators.com/media/89143975116.pdfIn PDF document text
  • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/16998ed9121e891632b58f6bf9c2d4e9/fikew.pdfIn PDF document text
  • https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/jisoeee7r6i06jsvbb3e6tdf2t/warimefiguxuzovuji.pdfIn PDF document text
  • http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1b6dc0971---vowekawanowukawu.pdfIn PDF document text
  • http://tageedesign.com/ssmpt/documents/file/47999525035.pdfIn PDF document text
  • http://hzzxtl.com/UploadFile/file/20210619065620732.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=marine+pollution+pdf+free+downloadPDF 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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