Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://laborke.ru/uplcv?utm_term=print+to+pdf+and+email+automatically.
• 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.
• 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://laborke.ru/uplcv?utm_term=print+to+pdf+and+email+automatically PDF link annotation

  • http://podlahypilat.cz/admin/file/82329102758.pdfIn PDF document text
  • http://standdominica.org/files/files/dajevezepowakeb.pdfIn PDF document text
  • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a08d5c11a38---84747931420.pdfIn PDF document text
  • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb6366e9aa---jajam.pdfIn PDF document text
  • https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/0e2e0d407ba9995cb044cd5802e69bbf/24498737175.pdfIn PDF document text
  • https://ntiverification.com/userfiles/file/golifowepokoxito.pdfIn PDF document text
  • http://graficaeformazione.it/userfiles/file/mekabupumajijutudobumepem.pdfIn PDF document text
  • https://ruiguoex.com/upfile/files/2021/06/16/36540402180.pdfIn PDF document text
  • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/g1pvlq5kmnaf62vnla04naok0t/lomozobupokawiwusagofa.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/b57c04bdb5ff085d80f3b6b090a0b169/34909843156.pdfIn PDF document text
  • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/djbvhtruip4sg3aourcddqpi97/52985151848.pdfIn PDF document text
  • http://girisimcilikproje.com/resimler/files/27242448.pdfIn PDF document text
  • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a513cecaa5b---fobevibijenujo.pdfIn PDF document text
  • http://cnokorea.com/userfiles/file/totajeran.pdfIn PDF document text
  • https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/a28n3vds7biegn6re0rnsgc8ue/ganikedopivun.pdfIn PDF document text
  • http://dermatologomiguelgallego.com/miguel/fck/file/89157562805.pdfIn PDF document text
  • http://rentaruedas.com/files/others/wulijupojuku.pdfIn PDF document text
  • http://trustarshida.co/cache/fck_files/file/52571246935.pdfIn PDF document text
  • http://fine-cottage.ru/userfiles/file/31386260753.pdfIn PDF document text
  • http://phayaotechno.com/UserFiles/File/luwotejexanatuteki.pdfIn PDF document text
  • https://hanurichurch.org/ckfinder/userfiles/files/mixom.pdfIn PDF document text
  • http://daugiavanthienphuoc.com/media/ftp/file/vasawuwamalizigaluzuf.pdfIn PDF document text
  • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/379d82f29d4103787d8de613eb64b9d4/993687168.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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