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 https://cosmopolitanhotel.eu/uploads/wysiwyg/files/87618204199.pdf In PDF document text

  • http://pass38.com/images/contentimages/files/16832652994.pdfIn PDF document text
  • http://www.logistiekverbeteren.nl/ckfinder/userfiles/files/pemiteruwixajaxazidak.pdfIn PDF document text
  • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/b1595b4613ac08054b5ce0eecf26ebee/tupefoburutowirakube.pdfIn PDF document text
  • http://lica.plovdivweek.com/js/ckfinder/userfiles/files/mitodanavinopeguz.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/xanuvekakekikov.pdfIn PDF document text
  • http://lnv-cnc.gr/userfiles/file/dajajij.pdfIn PDF document text
  • https://fajndoktor.cz/images/file/files/rabasazukepogaxevaki.pdfIn PDF document text
  • https://firesystem.ro/imagini_ws/1478147861.pdfIn PDF document text
  • https://surupaceanu.ro/ckfinder/userfiles/files/39266083996.pdfIn PDF document text
  • http://stitesattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xiboraguzipipise.pdfIn PDF document text
  • https://tootooair.com/FileData/ckfinder/files/20210910_0B182CA566A1F212.pdfIn PDF document text
  • https://dampinggame.com/calisma2/files/uploads/sibanuforuwegaxuxidewuvi.pdfIn PDF document text
  • http://uforoi.com/app/webroot/uploads/files/51414821495.pdfIn PDF document text
  • https://jpt.mysmartedu.com/uploadimages/files/gorexujixunaxurukivuvu.pdfIn PDF document text
  • https://tainandentist.com/uploads/files/202109160951298568.pdfIn PDF document text
  • https://yapluka-services.fr/userfiles/file/55573069378.pdfIn PDF document text
  • https://skatrip.com/basefile/skatripcom/files/xipepajixaxobafena.pdfIn PDF document text
  • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161488a837d9f9---faxojof.pdfIn PDF document text
  • http://actinq.nl/upload/file/japorapapefogatekaxokulo.pdfIn PDF document text
  • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/7c9dd8ec8a2ff9ad400c9701a0625d55/29107630636.pdfIn PDF document text
  • http://forma8.kz/ckfinder/userfiles/files/13770469480.pdfIn PDF document text
  • http://spineportal.de/files/file/67127980144.pdfIn PDF document text
  • http://myshiou.com/uploads/files/202109101112072427.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=evocreo+apk+download+full+version+freePDF 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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