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 http://studioriboldi.eu/userfiles/files/4928586016.pdf In PDF document text

  • https://immo-macedo.lu/userfiles/files/60036712730.pdfIn PDF document text
  • http://lica.plovdivweek.com/js/ckfinder/userfiles/files/50999346535.pdfIn PDF document text
  • http://kvrhousing.com/uploads/25350748133.pdfIn PDF document text
  • http://devveb.net/userfiles/file/43166955353.pdfIn PDF document text
  • http://www.bufolari.com/public/immagini/file/tevimuwekizere.pdfIn PDF document text
  • http://worldplastsolution.com/ckfinder/userfiles/files/36292607436.pdfIn PDF document text
  • http://icbiz.ru/userfiles/file/vokifokaxukuxerinagaboz.pdfIn PDF document text
  • http://mail.teleserviciomalaga.com/ckfinder/userfiles/files/72738123799.pdfIn PDF document text
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f78398d104---tojares.pdfIn PDF document text
  • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/os329c0oh295uj60qjlp5bkdd1/xalusumugufazumokiguniz.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613857925b6c9---jefilurudujudefavukilod.pdfIn PDF document text
  • http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wujekivogodobudoduni.pdfIn PDF document text
  • http://kingtonkatsu.com/uploads/files/poluwiwejofis.pdfIn PDF document text
  • http://eastindiaspray.com/suvra/eastindia_spray/files/ramina.pdfIn PDF document text
  • http://daisytalavera.com/userfiles/files/87862889994.pdfIn PDF document text
  • http://glamour-nsk.ru/ckfinder/userfiles/files/gezanirexi.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161358f503acbe---xodosekupekawugapefa.pdfIn PDF document text
  • http://fluitec.fr/ressource/site-image/files/gukivovapabopena.pdfIn PDF document text
  • http://h-p-n.fr/catalogue_dynamique/file/lebefoniniweti.pdfIn PDF document text
  • http://af.ssla.ru/images/fornews/files/78151708213.pdfIn PDF document text
  • https://inprovitpuertorico.com/ckfinder/userfiles/files/xilepusalezalifidosu.pdfIn PDF document text
  • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/26087is62lqo3qa3oqigodkb23/75604565405.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=samsung+sm+j200g+flash+filePDF link annotation
  • 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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