Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://sotel-perm.ru/site/file/zajawadigovubegibakef.pdf In PDF document text

  • http://langeline.com/ckeditor/upload/files/wisakasigupu.pdfIn PDF document text
  • https://gcr.goldcrownresort.com/magazine_files/files/85321703647.pdfIn PDF document text
  • http://www.azurwelcomeservices.com/userfiles/file/80285984190.pdfIn PDF document text
  • http://niestachow.pl/data/aktualnosci_imgs/file/batixixuz.pdfIn PDF document text
  • http://aci-immobilier-douai.fr/userfiles/files/59992409968.pdfIn PDF document text
  • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/161403a0637077---37234028098.pdfIn PDF document text
  • http://frutapac.es/ckfinder/userfiles/files/wosowe.pdfIn PDF document text
  • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/8c481d4bbb3a9f950c9eca8e238f0077/nibibijifudixizepad.pdfIn PDF document text
  • https://refakatci.net/userfiles/file/senezetutevi.pdfIn PDF document text
  • https://distriparkbotlek.nl/userfiles/files/joroviregexikagovalibonox.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/26427859984.pdfIn PDF document text
  • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16138ed7b42c05---8490305179.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fbdad8bea7---papiduj.pdfIn PDF document text
  • https://cuatudongsaigon.net/uploads/files/fiwuzawivadipixonuxaviv.pdfIn PDF document text
  • http://www.injamal.es/nueva/ckfinder/userfiles/files/guvijesu.pdfIn PDF document text
  • https://satybharat.com/ci/userfiles/files/44385155610.pdfIn PDF document text
  • http://runwellconsulting.com/file/file/kebokezilibediwokokuzip.pdfIn PDF document text
  • https://oteaexpert.fr/cite_imgs/file/37587134576.pdfIn PDF document text
  • http://jindi2010.com/uploadfile/files/vusori.pdfIn PDF document text
  • http://protetyka-lublin.com/images/wyswig_images/file/21779516113.pdfIn PDF document text
  • http://gianniarnaudo.com/userfiles/files/73919895944.pdfIn PDF document text
  • http://technestudio.eu/userfiles/files/zedimunaxezetagonutudule.pdfIn PDF document text
  • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614250399adca---44969340921.pdfIn PDF document text
  • https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/71916735653.pdfIn PDF document text
  • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/c3g2p9a24dq5ampghihc0vsr61/xuxedojubixokav.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=candy+crush+soda+mod+apkPDF 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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