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://smidgel.ru/uplcv?utm_term=apk+installer+pro+mod+apk.
• 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://smidgel.ru/uplcv?utm_term=apk+installer+pro+mod+apk PDF link annotation

  • http://olddieselparts.com/ckfinder/userfiles/files/xefavob.pdfIn PDF document text
  • http://qazaqbanki.kz/data/content/files/19513788089.pdfIn PDF document text
  • http://alltechsro.cz/files/15847202693.pdfIn PDF document text
  • http://slenderclub.cz/ckfinder/userfiles/files/ligadorosanaga.pdfIn PDF document text
  • http://unseretochter.com/images/file/11851460209.pdfIn PDF document text
  • https://chambres-a-la-ferme-plouzelambre.fr/userfiles/file/depikoxoxewavefo.pdfIn PDF document text
  • https://bnbcostaverde.it/userfiles/file/nepodixumelarujobusoli.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/161355ea84765b---81833183518.pdfIn PDF document text
  • http://e-photo.lv/ckfinder/userfiles/files/64102684215.pdfIn PDF document text
  • http://dges.in/userfiles/file/25924276430.pdfIn PDF document text
  • https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/b0c35cd02181b13444a32a305369f350/lakerux.pdfIn PDF document text
  • http://www.deep2001.com/images/library/File/buwabokaluwidufozanozuro.pdfIn PDF document text
  • http://otelm4b.ru/admin/ckfinder/userfiles/files/gifovanafevonolifuruse.pdfIn PDF document text
  • http://praguynakorn.com/praguynakorn/picture/datapro/files/defizerusogenozezudumogev.pdfIn PDF document text
  • http://covina.crazyrockinsushi.com/uploads/files/81784937119.pdfIn PDF document text
  • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b54859bf2f---76944823933.pdfIn PDF document text
  • http://wgadget.com/file_media/file_image/file/98130999847.pdfIn PDF document text
  • http://euroambulans.pl/userfiles/file/571594408.pdfIn PDF document text
  • http://salonorganica.ru/upload/files/75833113376.pdfIn PDF document text
  • http://goozzl.com/userfiles/files/tulufeleliroziviwepujowo.pdfIn PDF document text
  • http://naturestuff.nl/siteimages/file/zetovegin.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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