Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://krisoc.ru/uplcv?utm_term=windows+7+professional+iso+image+download PDF link annotation

  • http://travelci.ru/ckfinder/userfiles/files/wujofe.pdfIn PDF document text
  • http://sancheonglittletheaters.com/upload/userfiles/2021/09/files/210916233753.pdfIn PDF document text
  • http://avesta-hmora.boj.se/uploads/userfiles/files/tuzudewotagaxupixavoxoni.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612f952447c12---dedobanufazugolupi.pdfIn PDF document text
  • https://bankubezpieczen.pl/userfiles/file/gexosuradepasu.pdfIn PDF document text
  • http://yourhandmadeitems.com/userfiles/file/23207909673.pdfIn PDF document text
  • http://xn----otbbfbbknchz.xn--p1ai/sadm_files/43000255136.pdfIn PDF document text
  • http://xn--c1aejbdnke.xn--p1ai/admin/ckfinder/userfiles/files/47569343871.pdfIn PDF document text
  • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/f7572e8de0b8de95a423be9b1086104e/14068895764.pdfIn PDF document text
  • http://balcimimarlik.com/resimler/files/guwomuvinirozipozetozojuz.pdfIn PDF document text
  • http://vanguardhungary.hu/userfiles/file/gozemurobisen.pdfIn PDF document text
  • http://molenat-energies.fr/molenat.com/images/editor/file/narevusotudoni.pdfIn PDF document text
  • https://subded.org/userfiles/file/lokigureruva.pdfIn PDF document text
  • http://sattosushi.com/uploads/files/difufado.pdfIn PDF document text
  • http://csc025.com/userfiles/file/20210913182231_21paxh.pdfIn PDF document text
  • https://siliconautomation.com/userfiles/file/rofupi.pdfIn PDF document text
  • https://ozmutludokum.com/userfiles/file/kugamikiti.pdfIn PDF document text
  • http://abwingsbuffalo.com/uploads/files/bopijidofixodigaz.pdfIn PDF document text
  • http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/161357591e7099---divelesopuwunatedawazuto.pdfIn PDF document text
  • http://samuiluxurytravel.com/Uploads/file/77507058363.pdfIn PDF document text
  • http://elskup.pl/images/assets/file/51453903098.pdfIn PDF document text
  • http://konditsionery-reutov.ru/upload_picture/file/84771128742.pdfIn PDF document text
  • http://c2r-auto.com/uploadfiles/file/2021091701260173499.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613548bd2f52d---673661393.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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