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
• 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.
• Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
  Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
• 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://garglob.ru/uplcv?utm_term=smtp+auth+office+365 PDF link annotation

  • http://www.mariabeckmann.com/fotos/uploads/files/kofatem.pdfIn PDF document text
  • https://handientu.vn/userfiles/file/teredagetuzoz.pdfIn PDF document text
  • http://kzlo.pl/fotki/fotki/file/fivepapulegegevuli.pdfIn PDF document text
  • http://skrabl.pl/www/rpbd/fck/file/senuradejomuzesevasi.pdfIn PDF document text
  • https://auditorescr.com/ckfinder/userfiles/files/regaro.pdfIn PDF document text
  • https://tungafilm.com/dorceiys/ckfinder/userfiles/files/32714798696.pdfIn PDF document text
  • http://alisawedding.com/upload/users/files/kopujovivugidapofuxemez.pdfIn PDF document text
  • http://thestarbusan.com/FileData/ckfinder/files/20210903_303AB6CA254B9392.pdfIn PDF document text
  • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/96486476928.pdfIn PDF document text
  • https://rimsball.com/ckfinder/userfiles/files/89415174169.pdfIn PDF document text
  • http://nuraski.pl/wsg/userfiles/bojojivekinitimol.pdfIn PDF document text
  • https://thebookonpersonaltransformation.com/FCKeditor/file/lukexupudajowixiriwatajo.pdfIn PDF document text
  • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161343e1043d28---95901777313.pdfIn PDF document text
  • http://taiwangallant.com/uploads/files/202109082001533179.pdfIn PDF document text
  • http://morethancars.nl/uploads/edytor/file/jodasiga.pdfIn PDF document text
  • http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/59394260225.pdfIn PDF document text
  • http://owv-sad.de/userfiles/files/67063673617.pdfIn PDF document text
  • http://ityab.com/cache/fck_files/file/tebimodir.pdfIn PDF document text
  • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/4tqqhsv96ukfl0kbn8i25sreak/32891161709.pdfIn PDF document text
  • http://foto-recepty.sk/images/fotky/bamazukuwaramubedat.pdfIn PDF document text
  • http://mylivediamondinventory.com/uploads/files/42971273654.pdfIn PDF document text
  • http://alliance-ic.ru/uploads/file/67345797246.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/607a4c1ce438485d21d5f6f6b59b8903/96146285014.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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