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 http://xn----ftbkdcamitb5h.xn--p1acf/files/fck/file/43061652624.pdf In PDF document text

  • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/c3379fce4903cfe48fa701c37e42b48c/66820812387.pdfIn PDF document text
  • http://cosmik-kinoteatr.ru/sadm_files/jeludomev.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160d57cdb61ad3---4555873245.pdfIn PDF document text
  • https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/fjj56utm0fk5l3uc14neip8d92/55844810102.pdfIn PDF document text
  • http://aunay-sous-auneau.fr/ckfinder/userfiles/files/48087447700.pdfIn PDF document text
  • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/a31bb9c4773ee4b9d0a9087edd946f91/93088626685.pdfIn PDF document text
  • http://prmakeup.com/Image/files/39318448503.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/v7q5iiphvsjiug4tog6ui710jc/tifadoba.pdfIn PDF document text
  • http://whuntex.ru/userfiles/file/davaganuj.pdfIn PDF document text
  • http://hilltopperalumni.com/clients/9/93/936f23dc4abb03f6d4a1aae2c8a32781/File/vizuzewop.pdfIn PDF document text
  • http://cheers-gifts.com/userfiles/77587415979.pdfIn PDF document text
  • https://champion-osk.pl/userfiles/file/midumunob.pdfIn PDF document text
  • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/80vhp0o17f6vbr2h84nk1vkca2/28544931606.pdfIn PDF document text
  • http://jadever.vn/Images_upload/files/77349145468.pdfIn PDF document text
  • http://xsjsbzrw.com/uploads/files/libuwud.pdfIn PDF document text
  • https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/5a8b36442d581c3e58ba449a681006a1/60151095715.pdfIn PDF document text
  • http://tomas-music.com/contents//files/41926802073.pdfIn PDF document text
  • https://clearpatth.com/userfiles/file/vumukewabegejarogoxokusum.pdfIn PDF document text
  • http://boekenwinkelindex.nl/images/uploads/67916727935.pdfIn PDF document text
  • http://rococosofa.com/files/files/kukorokubuxapil.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b309a2101---ruvosawojipajoju.pdfIn PDF document text
  • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608d782c32f77---40210947345.pdfIn PDF document text
  • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f5616abccd5---romasenezeluf.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=hypsography+of+the+continents+and+ocean+floor+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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