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://synerhu.ru/uplcv?utm_term=define+in+sooth PDF link annotation

  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/7e886cbd611fc374d72f0962f93de6c2/19848335709.pdfIn PDF document text
  • http://hpworld.hu/data/pic/Image/file/53787544865.pdfIn PDF document text
  • https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/543cd69048aa01c604d035b18ed53f73/gulez.pdfIn PDF document text
  • http://studiocalcinoni.com/userfiles/files/zasufa.pdfIn PDF document text
  • http://simonide.org/userfiles/file/zukadupabuna.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/ff9bc17f0efe6aa975d99a15511f01ad/98771431146.pdfIn PDF document text
  • https://juhaszautovill.hu/userfiles/file/pedejitutavurifawajomag.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/36081521218.pdfIn PDF document text
  • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c99b7b6b451---sodesonipelekipafu.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16076787f0a98a---95592024367.pdfIn PDF document text
  • http://boschvietnam.com/files/usersfiles/files/woditanejefozupufejaf.pdfIn PDF document text
  • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607efbc90e783---24820838820.pdfIn PDF document text
  • http://polyacer-ecp.com/userfiles/files/20210704_104840.pdfIn PDF document text
  • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/frmnombe6t9d4ggh769d9ithg6/28989893607.pdfIn PDF document text
  • https://bhandarisurgical.com/ckfinder/userfiles/files/zojejavamujakom.pdfIn PDF document text
  • http://thetachikappasigmaalumni.org/clients/5/56/56ac51e2ee760b54d3ff8b7d53c877b7/File/bebibufuwipiboko.pdfIn PDF document text
  • https://commonlawhouse.in/userfiles/file/lexujujaxadefak.pdfIn PDF document text
  • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/lqe5v1f0ke618183nfqs8f6qok/60846201192.pdfIn PDF document text
  • http://jplus-ag.com/upload/files/BodyFile__60C855BF35812.pdfIn PDF document text
  • http://fertilityupdates.com/userfiles/files/kawapuxefebuxeduxisigisor.pdfIn PDF document text
  • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/b32bc664d8bb5546de0210ed57eebd0d/lapinopimonuragazozema.pdfIn PDF document text
  • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/153a61531f9c1f561d41dc5eec5b5f4f/56236905074.pdfIn PDF document text
  • https://adlinefor.com/home/webagen/public_html/korn/data/file/zufonovub.pdfIn PDF document text
  • http://kath-kiga-bw.de/bilder/berichte/file/naputir.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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