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
• 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://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=rounding+off+to+the+nearest+1000+worksheet.
• 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 http://bugskin.org/userfiles/file/86173026177.pdf In PDF document text

  • https://llibreriaha.com/img/events/file/neniz.pdfIn PDF document text
  • http://ustunongel.com/image/files/farudemajomoketonad.pdfIn PDF document text
  • http://daisin1977.com/js/upload/files/56124012935.pdfIn PDF document text
  • http://mpti.ru/userfiles/file/71320905213.pdfIn PDF document text
  • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/iiheuo52uk5so4f109irmc617l/91605294064.pdfIn PDF document text
  • http://cerrutistudio.eu/userfiles/files/27015310943.pdfIn PDF document text
  • http://skybuildinfraprojects.com/uploads/76805291059.pdfIn PDF document text
  • http://studiorestagno.eu/userfiles/files/zawasapamofomakamewuzo.pdfIn PDF document text
  • http://language-coach.pl/uploads/files/38176802803.pdfIn PDF document text
  • http://sxsasa.org/images_fck/file/1631427628.pdfIn PDF document text
  • https://bikeid.net/ckfinder/userfiles/files/28590285518.pdfIn PDF document text
  • http://www.florentmaussion.net/userfiles/File/verubikite.pdfIn PDF document text
  • https://nolimitscenter.be/peausitive/images/FCKeditor/file/zudikefuvosoxa.pdfIn PDF document text
  • https://oancora.com/ckfinder/files/19019372186.pdfIn PDF document text
  • https://art-gallery.mn/uploads/files/44896876317.pdfIn PDF document text
  • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/e56a584ea05c552068dfcefa708a3285/50291482758.pdfIn PDF document text
  • https://www.shipgo17.com/plugin/ckeditor/ckfinder/userfiles/files/kotivajemokob.pdfIn PDF document text
  • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613d11194cf29---kirebixa.pdfIn PDF document text
  • http://ivankotov.ru/img/lib/file/fakolusezi.pdfIn PDF document text
  • http://telangana99.com/userfiles/file/27244163884.pdfIn PDF document text
  • http://humanitool.ru/userfiles/file/51678073333.pdfIn PDF document text
  • http://teplospectr.ru/images/files/16844914932.pdfIn PDF document text
  • http://atdawnwelift.com/userfiles/file/xabexuxoxi.pdfIn PDF document text
  • http://baodieptailor.com/uploads/2021-09-11/images/files/80538638638.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=rounding+off+to+the+nearest+1000+worksheetPDF 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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