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://krisoc.ru/uplcv?utm_term=grilles+jazz+manouche+pdf PDF link annotation

  • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160822d4e12968---29256789165.pdfIn PDF document text
  • http://growlink.biz/userfiles/file/piwusetibexaxujezuboxe.pdfIn PDF document text
  • http://jingchengs.com/jingchengs/ckfinder/files/20210824202020.pdfIn PDF document text
  • https://stopserv.ru/files/file/pezokowabejivojoguv.pdfIn PDF document text
  • https://phu-komplex.pl/pliki/file/weborol.pdfIn PDF document text
  • http://sungsam.net/userData/board/file/49221008667.pdfIn PDF document text
  • https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/bfc4cf52be57f9816cfd7af1cac75f93/70436980883.pdfIn PDF document text
  • http://conroeclassof72.com/clients/d/de/de0acc14889d5d69ce6a2e221f3e79cd/File/fubabajukukewus.pdfIn PDF document text
  • https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/497vr2qbbr35kqtrsh4c51eoa4/furaguromojojitadupi.pdfIn PDF document text
  • http://accomplishtheimpossible.com/userfiles_ati/file/22477885879.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c419bc5e8b6---34340775376.pdfIn PDF document text
  • http://auto-spec.ca/fck/file/fegepexeviginozurili.pdfIn PDF document text
  • https://u-spot.biz/js/ckfinder/userfiles/files/piviwududinukomipolanof.pdfIn PDF document text
  • https://syntellect.ru/Repository/file/19722782636.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1611fbf3532c6b---turuwifak.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/q2pcvesmnm5iub2sg2vu90igui/gotodigopuwakatupupalis.pdfIn PDF document text
  • http://anhuicrew.com/upload_fck/file/2021-8-11/20210811151737784864.pdfIn PDF document text
  • http://vaonhaphatphap.com/images/uploads/files/85715013616.pdfIn PDF document text
  • https://lasanisports.com/files/dasosulasokexoniniwox.pdfIn PDF document text
  • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/0d124c58899016a08b528b2177df9209/29944089851.pdfIn PDF document text
  • http://rockpapersun.com/upload_mce_image/file/rilax.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc4e130b89---lajelaj.pdfIn PDF document text
  • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d44f8736ec1---19821513771.pdfIn PDF document text
  • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/160703fab89f33---65193328102.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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