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://queure.ru/uplcv?utm_term=to+be+vaccinated PDF link annotation

  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bca10889043---94533974927.pdfIn PDF document text
  • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16089cdba49c48---4769485006.pdfIn PDF document text
  • https://sfasg.jp/js/ckfinder/userfiles/files/68128773006.pdfIn PDF document text
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2cdd1fc24---61874187122.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160872f96a7980---5952584187.pdfIn PDF document text
  • http://richardarnoldalumni.com/clients/a/ad/ad1dcfa6f69ac51e3fe6bec18f6cf6d6/File/50119381745.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1a1e11a7a1---65630223567.pdfIn PDF document text
  • http://metalltechnik-kutschi.at/reludagekibom.pdfIn PDF document text
  • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/2a4fph9ah42t9pcjmc3hk5ig80/93086013825.pdfIn PDF document text
  • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/5otoim3h7q726lmnlrg4j6el7f/vidurew.pdfIn PDF document text
  • http://ilkjv.com/Images/Media/files/24353570912.pdfIn PDF document text
  • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16126791609361---bekaviz.pdfIn PDF document text
  • https://regionalhealthprogramsww.com/images/file/23251982383.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608f51568e5ef---jafonomivusitinosesosezar.pdfIn PDF document text
  • https://emmaushuis.org/pages/mudulowagivek.pdfIn PDF document text
  • http://azseal.net/uploads/userfiles/file/80823826312.pdfIn PDF document text
  • http://skrabl.pl/www/rpbd/fck/file/77267677776.pdfIn PDF document text
  • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/d960e90cf3c04cc45d2e5f051baeef8b/73686099088.pdfIn PDF document text
  • http://hatowo.com/app/webroot/uploads/files/sotadutozofi.pdfIn PDF document text
  • https://cplastik.cz/data/cms/file/27528707375.pdfIn PDF document text
  • http://kadh.kr/bobod/upload/file/redig.pdfIn PDF document text
  • http://berallebags.com/UploadFiles/FCKeditor/20210525224746.pdfIn PDF document text
  • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/d2c2c545dbb873d376ee67b9c93e9cae/30482764246.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608df8b2e2d7e---tumabujobemitimato.pdfIn PDF document text
  • https://semineebrasov.ro/printuri-fi/files/70532105382.pdfIn PDF document text
  • https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/ae4b3f0353dfcf0a37162506cacb7cbc/40900949646.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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