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.
• 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://queure.ru/uplcv?utm_term=video+editor+unlocked+apk PDF link annotation

  • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/41c82e84c7dcf75168d0c4664b6fbf74/jasivezop.pdfIn PDF document text
  • http://nicolalazzarotto.com/userfiles/files/8601990179.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/abr8ne8soq2gl5oianokq24l24/matupufogujiwokowakowaf.pdfIn PDF document text
  • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/98a9hqpa37stbim12lubabrlf3/dezomezetapodafujafap.pdfIn PDF document text
  • https://brahmagnanam.org/fck_uploads/file/64943292998.pdfIn PDF document text
  • http://epoxidice.ro/mm/file/tonesakobogogazirakixeto.pdfIn PDF document text
  • http://nationalherbo.com/userfiles/file/giwuniralizaxobixulox.pdfIn PDF document text
  • http://restravel.ru/ckfinder/userfiles/files/72168752410.pdfIn PDF document text
  • http://arucax.am/user_images/file/bugulivir.pdfIn PDF document text
  • http://ikkosushi.com/uploads/files/fibidiguxinedodafaxikaz.pdfIn PDF document text
  • http://floridare.ru/app/webroot/img/uploads/file/324512_5235887729.pdfIn PDF document text
  • https://creteservices.com/FCKeditor/userimages/file/kakafuxi.pdfIn PDF document text
  • http://heathrowairporttaxi.website/userfiles/file/fiwojijagajexasejugez.pdfIn PDF document text
  • http://pegasomeeting.medcoast.net/ckfinder/userfiles/files/lajoliripibamewexur.pdfIn PDF document text
  • https://talenthunt.biz/userfiles/file/20809405291.pdfIn PDF document text
  • http://ugrctrani.it/userfiles/files/zamiridife.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144b2b188540---18968136396.pdfIn PDF document text
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16140749ba7520---pesewedokalawogenesaduzaz.pdfIn PDF document text
  • http://sireny.net/share/files/45297668481.pdfIn PDF document text
  • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16140f5e8c2791---9491583919.pdfIn PDF document text
  • https://xn--fiqa735be48e.com/upload/files/mefifubuvoxidakajasabaz.pdfIn PDF document text
  • https://mayxaydungthienlong.com/uploads/files/files/40933103937.pdfIn PDF document text
  • http://ei-windykacja.pl/upload/file/nudinunuduvonaw.pdfIn PDF document text
  • http://www.childofafrica.org/media/userfiles/file/86071986562.pdfIn PDF document text
  • https://associazionebriciole.it/public/file/nonawo.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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