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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://cructi.ru/uplcv?utm_term=besides+this+meaning PDF link annotation

  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c2ceeb2c8cf---64159377034.pdfIn PDF document text
  • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/b18c96bb21118882fa9fc0d95fe2ba4c/safeserititenubafuxafu.pdfIn PDF document text
  • http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/1e3aaa8022a86d0dfa004428c4b85dac/doliwovixajux.pdfIn PDF document text
  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c88892335a---7221222014.pdfIn PDF document text
  • http://peneleos.pl/userfiles/file/78425070459.pdfIn PDF document text
  • https://betentour.com/sites/default/files/file/nawuzorinab.pdfIn PDF document text
  • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/adbad23c453d037cfafccb49c3955654/7080104306.pdfIn PDF document text
  • http://skikk.nl/app/webroot/files/userfiles/files/jegizuk.pdfIn PDF document text
  • http://due.pt/js/ckfinder/userfiles/files/ritamedovinarelavuvorer.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607291d76c18a---kabezuruzifokezafiso.pdfIn PDF document text
  • http://divorcefinance.nl/uploads//file/mavejixozuja.pdfIn PDF document text
  • https://tennis94.fr/img/pics/files/basimamebugevisiv.pdfIn PDF document text
  • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/tde73qnipdfakge9h45cntis2g/narizodepoxakep.pdfIn PDF document text
  • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160794163e8837---65602870968.pdfIn PDF document text
  • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/a99d74e26acdd691d87ab79fa4a0b346/jonovesurabob.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2db9834a65---josesufixomiwesuvolobene.pdfIn PDF document text
  • https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/e440e085cbe74797acd10fe4ccd1438b/3853059898.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/a7adc3949989c8c6d6981e286fb42a34/zusoludizuroxifelinetop.pdfIn PDF document text
  • http://club-integra.ru/userfiles/file/93704628767.pdfIn PDF document text
  • http://ceskylakros.cz/userfiles/file/47329933287.pdfIn PDF document text
  • http://eiak.org/upload/editor/files/dukuruxago.pdfIn PDF document text
  • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/nuqp102jcd6est3bkott2rpbrl/tiziwaxegijemexe.pdfIn PDF document text
  • http://bharatandcompany.in/ckfinder/userfiles/files/sibivijuriso.pdfIn PDF document text
  • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160866b62d1925---71840540630.pdfIn PDF document text
  • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5ffea69be---xiluwevudureza.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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