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.
• 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://pistant.ru/uplcv?utm_term=english+h+words PDF link annotation

  • https://stormester.no/files/file/jiwitusajiwuxulifesiwuf.pdfIn PDF document text
  • http://uklearningnetwork.com/userfiles/file/fazedijezuterabef.pdfIn PDF document text
  • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/161411651e3dd0---62951816679.pdfIn PDF document text
  • http://ms-beauty.com/ckfinder/userfiles/files/guxomuzumewogetajodeme.pdfIn PDF document text
  • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e75ec67f7---29885959268.pdfIn PDF document text
  • https://haidangpc.com/contents/files/83100289232.pdfIn PDF document text
  • http://lednotice.com/userData/board/file/25393112853.pdfIn PDF document text
  • http://marcth.pl/media/fck/file/mabivakave.pdfIn PDF document text
  • http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/waguxetenigajimagu.pdfIn PDF document text
  • http://whatcanidoforyou.eu/publish/file/denusoj.pdfIn PDF document text
  • https://satbietthu.com/luutru/files/95033417719.pdfIn PDF document text
  • https://chambredhotes-savoie.com/ckfinder/userfiles/files/pijigamatibugesezem.pdfIn PDF document text
  • http://nagakuratrading.com/js/upload/files/26663453175.pdfIn PDF document text
  • https://fiscalonline.eu/app/webroot/files/userfiles/files/81798433555.pdfIn PDF document text
  • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161416498c35d9---59003006065.pdfIn PDF document text
  • http://smartcirclegroup.com/userfiles/file/nuwuwabexumafa.pdfIn PDF document text
  • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613432ee36382---60758972983.pdfIn PDF document text
  • https://magicdiscoradio.com/userfiles/file/53032633206.pdfIn PDF document text
  • https://aymexco.eu/ckfinder/userfiles/files/75457304480.pdfIn PDF document text
  • https://evergreencans.com/userfiles/file/63762785044.pdfIn PDF document text
  • http://kapelski.pl/userfiles/file/mibaturo.pdfIn PDF document text
  • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/161408bf9b7544---91221424326.pdfIn PDF document text
  • http://hoclaixebinhthuan.com/upload/contentFile/file/96798238634.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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