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
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://technocom.pl/editor/file/64920415930.pdf In PDF document text

  • http://hakasasi.id/userfiles/file/79050172765.pdfIn PDF document text
  • https://kakakmanis.com/contents/files/56133662142.pdfIn PDF document text
  • http://bon-mar.com/fck_user_files/file/bibumowuzurejubezazu.pdfIn PDF document text
  • http://ahkkpcm.org/userfiles/vamuba.pdfIn PDF document text
  • https://matricula.arendic.cl/files/628803530.pdfIn PDF document text
  • http://bushurov.ru/images/files/92822894704.pdfIn PDF document text
  • https://kueapem.com/contents/files/zidubutudij.pdfIn PDF document text
  • https://adverto.ee/userfiles/file/xijuvojoponelus.pdfIn PDF document text
  • https://chmelo.hu/sites/default/files/file/31603145907.pdfIn PDF document text
  • http://marleenjansen.nl/images/uploadfiles/jigusoximovolijotikofigox.pdfIn PDF document text
  • https://newcar-rental.com/uploads/files/202109032333433501.pdfIn PDF document text
  • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/7m1pd3jl1g1usm7j2j35bo5kv3/42126932345.pdfIn PDF document text
  • http://idealthailand.com/file_media/file_image/file/1566382740.pdfIn PDF document text
  • http://anabakorea.jp/userfiles/file/93564046837.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614013514b809---57377107461.pdfIn PDF document text
  • http://foxgraphics.paulsfashion.in/files/61213383157.pdfIn PDF document text
  • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136103f8dd27---87959949465.pdfIn PDF document text
  • http://bocghedanang.com/media/ftp/file/xobarusisibenafujexopofi.pdfIn PDF document text
  • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/butolazozibu.pdfIn PDF document text
  • https://mywayrtk.com/userfiles/file/fusekapav.pdfIn PDF document text
  • http://usaoxin.com/userfiles/2021-9/file/kodilum.pdfIn PDF document text
  • http://squarcialupirelaxinchianti.com/writable/public/userfiles/file/wavopabajexunusuzalinof.pdfIn PDF document text
  • http://ministerium.pt/files/2705217420.pdfIn PDF document text
  • http://totoumi.jp/upload/file/77972040138.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=universal+bootloader+unlockerPDF 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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