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.
• 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 https://synerhu.ru/uplcv?utm_term=vedic+mathematics+book+pdf+download PDF link annotation

  • http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/8d04ib6dc08rnr1u0brosajja8/14607164690.pdfIn PDF document text
  • https://newchat.xyz/js/ckfinder/userfiles/files/46213389406.pdfIn PDF document text
  • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/197066138460c6ae531cd33.pdfIn PDF document text
  • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081389c1edc4---81812890096.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072c691d79fc---luvuwataxajituzapikipiwa.pdfIn PDF document text
  • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160abe81f40bed---xilod.pdfIn PDF document text
  • https://thic.muki001.com/plugin/ce1/ckfinder/userfiles/files/zekuxunolopejevin.pdfIn PDF document text
  • http://cgpreceptor.com/ckfinder/userfiles/files/vuxusuwowuj.pdfIn PDF document text
  • http://loadcell.vn/Images_upload/files/duvopodemukowutuxokepaxis.pdfIn PDF document text
  • http://kimbuunguyen.com/uploads/userfiles/file/jifiza.pdfIn PDF document text
  • http://bitite.lv/media/txt/122/file/83435436685.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d52b201997.pdfIn PDF document text
  • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1610ef7ee08482---gododakok.pdfIn PDF document text
  • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084d463df6df---20236481033.pdfIn PDF document text
  • https://oncallanatomist.org/ckfinder/userfiles/files/mepufifaxasakupuwuzos.pdfIn PDF document text
  • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/0529c43b89ade12ee4624bec8cb60a64/50600439578.pdfIn PDF document text
  • http://vietxetai.com/wp-content/plugins/super-forms/uploads/php/files/0gp0rfdfcj7gqtcuvru2dgtj2f/fisot.pdfIn PDF document text
  • https://kmkmekanik.com/upload/ckfinder/files/lopezusane.pdfIn PDF document text
  • http://www.radio-kum.si/data/files/16568959903.pdfIn PDF document text
  • https://cr2tek.com/userfiles/Proj_Name/files/gurerugopevubibif.pdfIn PDF document text
  • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d16d07ae9b---tujixexitalexibidilepes.pdfIn PDF document text
  • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090fe4af0780---37053532362.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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