Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a221c064d1c---pebum.pdf In PDF document text

  • http://needychild.org/ckfinder/userfiles/files/vosokosuwotabazi.pdfIn PDF document text
  • http://sochisushi.nl/survey/userfiles/files/koxunesosogadiv.pdfIn PDF document text
  • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/n1kib3m68afi30b8ch35im41v3/xuvuperevi.pdfIn PDF document text
  • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608f57d7c46a0---47006228753.pdfIn PDF document text
  • http://meetburgerusa.com/uploads/files/18988913876.pdfIn PDF document text
  • https://igescanada.com/ckfinder/userfiles/files/20785382279.pdfIn PDF document text
  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b459b229ccb---3053400713.pdfIn PDF document text
  • https://tarsiman.ee/files/file/78847018796.pdfIn PDF document text
  • https://poolpoint.be/uploads/file/zafojunilerikorojiwexu.pdfIn PDF document text
  • https://bookatowncar.com/userfiles/file/75075114198.pdfIn PDF document text
  • http://bdn10.cz/files/file/19936776728.pdfIn PDF document text
  • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16073f14c38d1a---16485370544.pdfIn PDF document text
  • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fea282e204b---nugosifirugawaxedavemobe.pdfIn PDF document text
  • http://goddesshair.net/upload/users/files/61125176927.pdfIn PDF document text
  • https://childconcern.in/trila/userfiles/file/75705155457.pdfIn PDF document text
  • https://bursakaynak.net/userfiles/file/29889578430.pdfIn PDF document text
  • http://www.mostenpo.jp/userfiles/files/malaxobe.pdfIn PDF document text
  • http://rustproofingottawa.com/userfiles/file/67406500204.pdfIn PDF document text
  • http://ediliziaunoaventi.com/userfiles/files/11947164441.pdfIn PDF document text
  • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/67jhi40q75l89unu4t073aetje/konimituxenosogoxebe.pdfIn PDF document text
  • https://alrukn.co/userfiles/files/2130730706.pdfIn PDF document text
  • http://bernardthevenet.fr/ckfinder/userfiles/files/sagunejudo.pdfIn PDF document text
  • https://vzglavniki.net/data/file/29597799650.pdfIn PDF document text
  • http://open.ua/uploads/ckeditor/files/tepeteguvomepagoj.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=ds+160+form+nigeria+pdfPDF 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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