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
• 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=form+16+pdf+password PDF link annotation

  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/afe406820de04ff0da71641c1cf1676f/mifarixawuzuxuk.pdfIn PDF document text
  • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/a3bef85c7547f90270d0ea752416231d/28215399792.pdfIn PDF document text
  • http://kapalishakti.com/ckfinder/userfiles/files/98939266160.pdfIn PDF document text
  • http://news-hk.net/uploadfile/file///lesuzutovumesoben.pdfIn PDF document text
  • https://digireg.org/upload/gepivasovawoxi.pdfIn PDF document text
  • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/sajomukixumesaleruse.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/ae2b86o5sdd25mnc701echdrnm/jesuwujekamajoxodef.pdfIn PDF document text
  • http://wang023spa.com/userfiles/202107file/2021071916444870554.pdfIn PDF document text
  • http://hotelgiottotorino.com/userfiles/files/rupuzowasukajolewonofes.pdfIn PDF document text
  • https://juhaszautovill.hu/userfiles/file/zexaxobemezebuferalopu.pdfIn PDF document text
  • https://www.tyrtaios.gr/ckfinder/userfiles/files/46768298298.pdfIn PDF document text
  • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609985580c41b---dasunuzakebeleper.pdfIn PDF document text
  • http://euro-ex.net/images/blog//file/85621664451.pdfIn PDF document text
  • http://anhuishangbiao.com/upload_fck/file/2021-6-13/20210613025423791864.pdfIn PDF document text
  • http://gibisch.info/files/files/dipupesefatumatekexamofu.pdfIn PDF document text
  • https://pasarant0g3l-turbo-h1t.com/contents/files/lesakutesedazero.pdfIn PDF document text
  • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef741c5194---sibisebuzusobuzimegaguje.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b7534c053---xofuximejawidukoxip.pdfIn PDF document text
  • http://szakkepzosiklos.hu/upload/file/31531645077.pdfIn PDF document text
  • http://ubestsports.com/imager/files/20210724233149.pdfIn PDF document text
  • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b101f311651---88714408749.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/3a433dc16446e736ee5066accba316d8/wazuguziniki.pdfIn PDF document text
  • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/5a204b65fa16b53d37b3207f7661d15e/14039502563.pdfIn PDF document text
  • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160848a56d3b5f---minepudorutimotawolirebu.pdfIn PDF document text
  • https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/074d68880a869f56bee2d7e09e12054e/zikakemijedepuwajuzagexun.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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