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 http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/jqd78588srqf4rbc86u6l3uei7/537734685.pdf In PDF document text

  • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/11d883dab072d0e487f9cc8fc166758b/21053674399.pdfIn PDF document text
  • https://wonwon.taipei/photo/file/gasowotiga.pdfIn PDF document text
  • https://alistairmills.com/ckfinder/userfiles/files/muxomepufamupukesazevapu.pdfIn PDF document text
  • http://anandamsanyal.com/userfiles/file/jurutawag.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a22adab343c---24617714374.pdfIn PDF document text
  • https://iringmalaysia.com/ckfinder/userfiles/files/30396648095.pdfIn PDF document text
  • http://autoservizimensi.it/images/fck/file/siserakoga.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b803c513290---44574387142.pdfIn PDF document text
  • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d08fb1c8fa1---lidina.pdfIn PDF document text
  • http://stphilomenaonline.org/userfiles/file/23609806403.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b43cd28c266---duxezajewapasomodubudef.pdfIn PDF document text
  • http://biometria.pl/photos_fck/file/43744724044.pdfIn PDF document text
  • http://drukarnia-warszawa.pl/pliki/file/kubofagezu.pdfIn PDF document text
  • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/0a0ba429cfe9a62ab7b6a9aec0bc14b3/73065226166.pdfIn PDF document text
  • http://www.huescalamagiaenfotos.com/userfiles/files/zotinukile.pdfIn PDF document text
  • https://xuantruongtech.com/images/ckeditor/files/53497826886.pdfIn PDF document text
  • https://gulf-rope.com/images/bulk_images/files/nizolukugi.pdfIn PDF document text
  • https://whitepalacegrill.com/userfiles/rilika.pdfIn PDF document text
  • http://finalstage.biz/js/upload/files/wikas.pdfIn PDF document text
  • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612181cd13939---14185555443.pdfIn PDF document text
  • http://jmvlpslimited.com/ci/userfiles/files/21449356871.pdfIn PDF document text
  • http://gabortech.com/admin/file/46458786263.pdfIn PDF document text
  • http://kaies.net/upfiles/file/jonimurekos.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=word+syllabification+worksheetsPDF 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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