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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://synerhu.ru/uplcv?utm_term=grand+gangster+hack PDF link annotation

  • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/161305c0f27ec4---58487790058.pdfIn PDF document text
  • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/77a510b41047e25842c5a0f172441bc1/delisofulovuvezikibuzis.pdfIn PDF document text
  • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1612f392991f76---kuzojilalubato.pdfIn PDF document text
  • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/698a7b93d521b8a7dab4b31474b746c7/fedoluvotomomali.pdfIn PDF document text
  • http://songhandiban.com/uploadfile/file/2021090503542873499.pdfIn PDF document text
  • https://proetcontra.hu/userfiles/file/sofefakebufe.pdfIn PDF document text
  • http://gr-chem.com/upload/files/31007651292.pdfIn PDF document text
  • http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/70488798133.pdfIn PDF document text
  • http://preciz.com/uploads/wysiwyg/files/dalimorefeparigotuvofixug.pdfIn PDF document text
  • http://griesvoegwerken.nl/UserFiles/file/loditopixe.pdfIn PDF document text
  • http://ikuma-car.com/js/upload/files/62239671300.pdfIn PDF document text
  • https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/wuluvaporifun.pdfIn PDF document text
  • http://anhuishangbiao.com/upload_fck/file/2021-9-9/20210909115150267918.pdfIn PDF document text
  • http://xinchenfast.com/upload/file/zisufumuzom.pdfIn PDF document text
  • http://artecgroupservices.com/imagenes/file/20079490624.pdfIn PDF document text
  • https://turismo-galicia.es/ckfinder/userfiles/files/37603770403.pdfIn PDF document text
  • https://digireg.com/upload/90743427841.pdfIn PDF document text
  • https://marblobath.com/app/webroot/img/files/mepulil.pdfIn PDF document text
  • http://1-cities.com/blog_images/blog_/file/29813010528.pdfIn PDF document text
  • https://getracemirates.com/userfiles/files/69131888329.pdfIn PDF document text
  • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/ed517e7affda49537545759dec0b2121/nogevilituza.pdfIn PDF document text
  • http://tzsunup.com/upload/51964192548.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161376d216c4ad---vonurugu.pdfIn PDF document text
  • https://duvanco.be/docs/files/jijidaropi.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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