Malicious PDF — malware analysis report

Heuristics 9

• 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.
• 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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=download+ome+tv+iphone PDF link annotation

  • https://istanajp.net/contents/files/vajaferidaletorik.pdfIn PDF document text
  • http://alituncer.com/userfiles/file/92290796523.pdfIn PDF document text
  • https://beauty-full.ru/uploads/files/vamolen.pdfIn PDF document text
  • http://zensushidanapoint.com/uploads/files/52601911667.pdfIn PDF document text
  • http://sp3siemianowice.pl/userFiles/files/fugin.pdfIn PDF document text
  • https://maviet.vn/upload/files/rifiwatoto.pdfIn PDF document text
  • https://highfieldhousehotel.net/nbloom/fckuploads/file/68784180697.pdfIn PDF document text
  • http://cgpharma.in/cote_dor_import/admin/ckfinder/userfiles/files/xelujatuwuvegimixejan.pdfIn PDF document text
  • http://cathugo-yachts.de/res/wysiwyg/file/moxaligaf.pdfIn PDF document text
  • http://burelomdo.com/ckfinder/userfiles/files/xazawarufudiboj.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/xavuk.pdfIn PDF document text
  • https://samsungdvmklima.com/upload/ckfinder/files/xezogo.pdfIn PDF document text
  • https://cometsecurity.in/admin/userfiles/file/xewudekizozaxidipakis.pdfIn PDF document text
  • https://nikosdimos.gr/userfiles/file/47737067506.pdfIn PDF document text
  • http://e-junghan.com/userData/board/file/xemupisasaf.pdfIn PDF document text
  • https://gymlesgeants.com/upload/editor/file/tevewasumanisovix.pdfIn PDF document text
  • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16140488f07d98---pimapereboviletesereli.pdfIn PDF document text
  • https://rippa.pt/files/file/vopafejeruguwi.pdfIn PDF document text
  • http://csc0535.com/userfiles/file/20210913045412_7ck2s7.pdfIn PDF document text
  • https://highlander-inn.com/assets/userfiles/files/takamameziregufituga.pdfIn PDF document text
  • http://www.mariabeckmann.com/fotos/uploads/files/50033478163.pdfIn PDF document text
  • https://dunaweb.co/bg_image/files/pasobipibomawitisatarer.pdfIn PDF document text
  • https://samsungklimalar.com/upload/ckfinder/files/defuwutakojivatiwisegi.pdfIn PDF document text
  • http://torremaggiore.sitmap.it/files/files/48537962310.pdfIn PDF document text
  • https://i-chat.tw/js/ckfinder/userfiles/files/zapomulepev.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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