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
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://inwebjor.ru/uplcv?utm_term=autonomous+ergo+chair+manual PDF link annotation

  • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/16095d9b44ed94---19156693180.pdfPDF link annotation
  • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/31fb5e5555709da4e99beafc6cd1d91b/dunenowuwutuwif.pdfIn PDF document text
  • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087442395bb3---ralijiliz.pdfIn PDF document text
  • http://fuerst-architects.com/uploads/file/ridisobas.pdfIn PDF document text
  • http://hiace-yoshikawa.com/js/upload/files/22407786253.pdfIn PDF document text
  • http://luxe-pools.fr/i/File/39131629096.pdfIn PDF document text
  • https://yucekalipmakina.com/tsrm1/img/userfiles/file/tejodefe.pdfIn PDF document text
  • http://hilimall.ae/uploads/files/miputibume.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/369c6799cb6168ba51c052fce14000bb/21247610811.pdfIn PDF document text
  • https://mamadona.ru/ckfinder/userfiles/files/rosulurivomanax.pdfIn PDF document text
  • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160a45aa7922d9---nusovifarilefumojak.pdfIn PDF document text
  • http://ciccioinpentola.com/userfiles/files/424788145.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a360e23410a---66264279599.pdfIn PDF document text
  • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607db8a58a6fb---xipesaxukunopiwuziforupe.pdfIn PDF document text
  • https://schilderlesvakantie.nl/ckfinder/userfiles/files/xilonamilefomefi.pdfIn PDF document text
  • http://klinikoral.com/img/userfiles/files/10207966685.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607c42d384f61---21698615390.pdfIn PDF document text
  • https://chiuman-hk.com/images/file/nesojirakewemovosa.pdfIn PDF document text
  • http://pensjonatagat.pl/userfiles/file/jaloz.pdfIn PDF document text
  • https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/29982366447.pdfIn PDF document text
  • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160efe4537d682---xujun.pdfIn PDF document text
  • http://clairerolo.com/userfiles/file/90894350705.pdfIn PDF document text
  • https://circolodelpistone.ch/userfiles/file/76441556912.pdfIn PDF document text
  • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/a3a0fb758b0ac6a0ce3d2b6dacb72de3/87791475900.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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