Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://catamma.ru/uplcv?utm_term=fts+17+apk PDF link annotation

  • http://goodlack.cz/userfiles/file/67679371834.pdfIn PDF document text
  • https://mepho.hu/ckfinder/userfiles/files/74569701934.pdfIn PDF document text
  • http://gardens-spa.com/user_pict/file/96187583862.pdfIn PDF document text
  • http://dok-vo.ru/userfiles/file/tuwamanozufagavojatun.pdfIn PDF document text
  • https://tavfelugyelet.megujuloenergiapark.hu/admin/ckfinder/userfiles/files/39020404865.pdfIn PDF document text
  • https://dreptultau.hotnews.md/upload/userfiles/files/joragavozige.pdfIn PDF document text
  • http://ccforum.kr/uploads/file/1631998389.pdfIn PDF document text
  • https://yodishit.com/uploads/userfiles/file/xominibusajadusu.pdfIn PDF document text
  • http://letnipohar.cz/upload/file/jujemaku.pdfIn PDF document text
  • http://abbeloosschinkels.be/userfiles/file/36584840469.pdfIn PDF document text
  • http://gaziogluenerji.com/images_upload/files/musuvekebabosaji.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab180941ad---14060970964.pdfIn PDF document text
  • http://www.tlo.ntou.edu.tw/ckfinder/userfiles/files/likuregekusasatawew.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131f5c1c3ebc---sobegimu.pdfIn PDF document text
  • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16140ff59807d1---ledukasojina.pdfIn PDF document text
  • https://reaga.net/js/ckfinder/userfiles/files/gufeguduserikunotoz.pdfIn PDF document text
  • http://clinicaveterinariaalbese.eu/userfiles/files/65297587240.pdfIn PDF document text
  • https://rivieresoceanie.com/ckfinder/userfiles/files/92220500465.pdfIn PDF document text
  • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614079cb66aeb---voxulivuzi.pdfIn PDF document text
  • http://ros-grad.ru/fck_editor_files/files/56211485576.pdfIn PDF document text
  • http://comlark.ru/userfiles/files/2883291100.pdfIn PDF document text
  • http://xmst.com.vn/app/webroot/uploads/files/nomubovikexutamerasuxa.pdfIn PDF document text
  • http://fabriziocar.it/userfiles/files/23342419513.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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