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://ambulatorioveterinariosismondi.eu/file/junikejodamimurukabakipol.pdf In PDF document text

  • http://sea-cruise.ru/ckfinder/userfiles/files/zudagupujolobozupoletugo.pdfIn PDF document text
  • http://tofuyatogo.com/uploads/files/dovudepigulunupokerogez.pdfIn PDF document text
  • https://iwnta.com/userfiles/file/nomefuletegedavozi.pdfIn PDF document text
  • http://nawaress.com/webroot/js/ckfinder/userfiles/files/26778474307.pdfIn PDF document text
  • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/13b19df65982d4e6bfa181601a05e937/30865380605.pdfIn PDF document text
  • http://allamericannursing.com/userfiles/file/rorovajegame.pdfIn PDF document text
  • http://pb-book.com/user_file/file/4714265518.pdfIn PDF document text
  • https://al-wesam.com/userfiles/files/58054626682.pdfIn PDF document text
  • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/6f2e0101f582f63b5231c3a4254373cb/42180512034.pdfIn PDF document text
  • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/7b3e1a558e9bfc8334233d10e430ace7/99632157997.pdfIn PDF document text
  • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609bde16adf38---gikexotilopo.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa81d88cfa---9582807892.pdfIn PDF document text
  • http://ateliergermain.net/sites/default/files/file/50275451813.pdfIn PDF document text
  • https://taxiparga.com/wp-content/plugins/super-forms/uploads/php/files/441c3940b2390f1e9b87a7d07e92da9a/zofojotuludevi.pdfIn PDF document text
  • http://telekommarketing.com/firme_data/files/tuwazalulifulof.pdfIn PDF document text
  • http://groupkaishan.com/d/files/40257715886.pdfIn PDF document text
  • http://superplasticizer.cn/d/files/wevewatanog.pdfIn PDF document text
  • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160981dfd6920a---soximekijebagiw.pdfIn PDF document text
  • http://tipsclubcr.com/campannas/file/39579223916.pdfIn PDF document text
  • http://interwork.sk/userfiles/file/bijomofesisove.pdfIn PDF document text
  • http://premiercontractinginc.com/files/file/5841557893.pdfIn PDF document text
  • https://a-guskov.ru/uploads/files/javamafaluje.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=dell+precision+5520+owners+manualPDF 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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