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 http://chukgoobok.com/files/fckeditor/file/7336980860.pdf In PDF document text

  • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/92b4287119dde063c13cf131d8928072/98416607369.pdfIn PDF document text
  • http://albino-pitti.com/pub_img/file/8520812333.pdfIn PDF document text
  • https://henseltech.cz/userfiles/file/5711371206.pdfIn PDF document text
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/16130cb9074666---dejeko.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613123eedb176---66092917866.pdfIn PDF document text
  • http://www.alex-vasilkov.ru/images/wisdom/file/24195696738.pdfIn PDF document text
  • http://erictex.com/ufiles/files/44655146438.pdfIn PDF document text
  • https://leavereview.com/customerinterview/ckfinder/userfiles/files/78192891067.pdfIn PDF document text
  • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/47b03e9f94651cbf17e5dae0d47bf9fa/funuf.pdfIn PDF document text
  • https://thailonghoang.vn/upload/files/95817567285.pdfIn PDF document text
  • https://eltechma.com/zdjecia/fck/file/sepatupefazafef.pdfIn PDF document text
  • http://fine-cottage.ru/userfiles/file/44919782425.pdfIn PDF document text
  • https://cordovajewelry.com/images/file/49235648897.pdfIn PDF document text
  • http://balcimimarlik.com/resimler/files/74646151702.pdfIn PDF document text
  • https://www.travelknowhowscotland.co.uk/assets/js/ckfinder/userfiles/files/77088626363.pdfIn PDF document text
  • http://babijie.com/upload_fck/file/2021-9-12/20210912192958302219.pdfIn PDF document text
  • http://gld-lining.com/user_img/files/wotirugerufaga.pdfIn PDF document text
  • http://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/16735939903.pdfIn PDF document text
  • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/7hikd4dk6a8aetq7rosoelvc60/99116516003.pdfIn PDF document text
  • http://studiogeologicotrilobite.com/userfiles/files/futagidawafa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=how+to+create+a+photo+folder+on+androidPDF link annotation
  • 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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