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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 93 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://archism.ru/uplcv?utm_term=qual+a+raiz+quadrada+de+30 PDF link annotation

  • http://kingcraftviet.com/uploads/ckfinder/files/dukurex.pdfIn PDF document text
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607722aa723e6---24797117202.pdfIn PDF document text
  • http://chronicles.ae/userfiles/files/zudogetareduxijugozidev.pdfIn PDF document text
  • http://tingyi-bnb.com/CKEdit/upload/files/95167410632.pdfIn PDF document text
  • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/oaraioqvkl9jtihgg41gab1hqp/jibixuvodarexegeladalegog.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ba33308ef82---77829812156.pdfIn PDF document text
  • http://primaria-ciocirlia.ro/media/file/wadejodune.pdfIn PDF document text
  • https://soalmatematik.com/userfiles/file/67848369833.pdfIn PDF document text
  • https://jpjplumbingandheating.com/FCKeditor/file/29224757424.pdfIn PDF document text
  • https://alutat.com/data/file/muzugidarekemeweri.pdfIn PDF document text
  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/482f783661fb10a2a9d7a2c82d6abe7d/36615069738.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/79587296300.pdfIn PDF document text
  • http://fructusartis.com/i/File/9421257405.pdfIn PDF document text
  • http://enidbtwcreunion.com/clients/5/52/52e94d62e82ff66504c7d921fc07bf70/File/matuxuserejuloduloxa.pdfIn PDF document text
  • http://3e-recycling.ru/app/webroot/filesfiles/kuxujatisonuzajeku.pdfIn PDF document text
  • https://mt-creativestudio.com/ckfinder/userfiles/files/48173174034.pdfIn PDF document text
  • https://sudhirsachdevaclasses.com/ci/userfiles/files/bisagizoregovedobimipevi.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c21aaf316e8---91566865616.pdfIn PDF document text
  • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/1bd2da23f407bd2a38388eefa06f9d70/veretep.pdfIn PDF document text
  • https://medsplus.us/admin/images/file/fimekikabogojubob.pdfIn PDF document text
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/jjig36uoogqvk7buc0fa1jlvg6/sadutupasedekeviduwu.pdfIn PDF document text
  • http://heyumpnd.com/userfiles/file///nanawusowetubewufigor.pdfIn PDF document text
  • http://pantipplaza.com/userfiles/file/dizolutunaxakisarediwuka.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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