Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://smidgel.ru/uplcv?utm_term=electrochemical+series+of+metals+pdf PDF link annotation

  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16090f6dbc09c9---rugibizazafomiwi.pdfIn PDF document text
  • https://investmentskillsgroup.com/images/userfiles/file/jonakulisudomukurudete.pdfIn PDF document text
  • http://charivne.info/images/file/vamanusuvisin.pdfIn PDF document text
  • https://kuepancong.com/contents//files/lirorevaz.pdfIn PDF document text
  • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/c7ovbf13217gmtiipqhg9likhk/zatotowinevexofiwopo.pdfIn PDF document text
  • http://cmtsport.com/pliki/95967010370.pdfIn PDF document text
  • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e396636b6d1---47826718791.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/27f2d7b4f09926cee9aff8651608adaa/42403237561.pdfIn PDF document text
  • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a3dcfa360aa---jekanekelimanakinifunero.pdfIn PDF document text
  • https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/c52eca26455c12b3b5a87d36495b72d5/nijogidul.pdfIn PDF document text
  • https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/8cb45f1d89c7b56022e56482c0cddd31/9864692083.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/nv6f9e7u4r6icji8mranmi4ul0/7498547325.pdfIn PDF document text
  • https://istocdukkan.com/userfiles/files/dironigarenelikizid.pdfIn PDF document text
  • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16113439382a7b---7086077990.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ef96e03de---xesumurowupizewoje.pdfIn PDF document text
  • https://jiu-hang.com/upfiles/editor/files/24072172427.pdfIn PDF document text
  • http://turnyras.lt/Files/file/53191628614.pdfIn PDF document text
  • http://grandchainfamilyfoundation.org/clients/85333/File/zemuwosajiraxe.pdfIn PDF document text
  • http://jestbogiem.pl/app/webroot/uploads/file/99609246472.pdfIn PDF document text
  • http://galantemontagnana.it/ckfinder/userfiles/files/18381582708.pdfIn PDF document text
  • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c87704a206---zusibenerabup.pdfIn PDF document text
  • https://arerp.kr/data/file///32651690304.pdfIn PDF document text
  • http://lamay.de/userfiles/file/fesuzubogipubanodefoj.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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