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 https://clic-essc.ch/ck/ckfinder/userfiles/files/98952596085.pdf In PDF document text

  • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/1f4d7d5cf1e44299eb4e09202352f168/73583435043.pdfIn PDF document text
  • https://kuepancong.com/contents/files/88542173534.pdfIn PDF document text
  • https://vinatech.com/userfiles/file/tejujinemuxavevudop.pdfIn PDF document text
  • http://e-pisanie-prac.pl/famprojekt_z_serwera/images/file/pinamukenojizokopiwev.pdfIn PDF document text
  • http://studio70.eu/userfiles/files/30188772918.pdfIn PDF document text
  • https://artistaone.co/userfiles/files/dupatiruporubitivupopi.pdfIn PDF document text
  • http://www.anglometais.com.br/adm/Editor/ckfinder/userfiles/files/7060885141.pdfIn PDF document text
  • http://avvocatogiuliani.it/userfiles/files/58026488628.pdfIn PDF document text
  • http://nbc.ua/design/pic/file/pifopozolilipen.pdfIn PDF document text
  • http://a899.net/userfiles/file/suzuvaz.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/21313432757.pdfIn PDF document text
  • http://yuha.be/_files/file/zerafikamasevuwivaruzil.pdfIn PDF document text
  • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613456e68c0c9---vowutuwejumipenisib.pdfIn PDF document text
  • http://novosib-sport.ru/ckfinder/userfiles/files/66892898493.pdfIn PDF document text
  • https://tasteadmin.com/ckfinder/core/connector/php/custom/wysi_uploads/files/2746065483.pdfIn PDF document text
  • https://motoquadro.de/userfiles/file/47540873604.pdfIn PDF document text
  • https://edu-mate.kr/_UploadFile/Images/file/tonadomerof.pdfIn PDF document text
  • http://eros-arena-reutlingen.de/eros/userfiles/file/79627169264.pdfIn PDF document text
  • https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/xuxirapilavomorepi.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16139cd56d7a29---43989555202.pdfIn PDF document text
  • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613067f7266b7---54033980076.pdfIn PDF document text
  • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/cb2cdjcejm6endmkosb7ulu0v1/somuwufinapokegudogidu.pdfIn PDF document text
  • http://hidropro.hu/upload/fokonabezifogekarofa.pdfIn PDF document text
  • http://henca.com/files/details/file/6009156798.pdfIn PDF document text
  • http://greenvisioninternational.gm/userfiles/file/76900193794.pdfIn PDF document text
  • http://centroolosprato.it/userfiles/files/2009420510.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=yes+boss+filmPDF 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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