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://krisoc.ru/uplcv?utm_term=thoptv+download+apk+2021 PDF link annotation

  • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/76e97666386512913a4f98e95ba82050/74570529887.pdfIn PDF document text
  • http://residenceraffaellotorino.com/userfiles/files/legatefexige.pdfIn PDF document text
  • https://mwasafat.com/uploads/files/jabamika.pdfIn PDF document text
  • http://mebelhotel.ru/userfiles/files/95306947138.pdfIn PDF document text
  • https://tspinstruments.com/cache/fck_files/file/97636656236.pdfIn PDF document text
  • https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/63245663371.pdfIn PDF document text
  • https://ratsimae.ee/media/contents/file/60087553479.pdfIn PDF document text
  • http://www.gieskestukadoors.nl/ckfinder/files/files/84314535179.pdfIn PDF document text
  • https://fishboat.hr/files/70517494612.pdfIn PDF document text
  • https://guijek.com/userfiles/file/55929919910.pdfIn PDF document text
  • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d9433e12a6---fotijalumaganomofefuxaxu.pdfIn PDF document text
  • http://pincailight.com/zk/UploadFile/file/2021090401014473499.pdfIn PDF document text
  • http://adance0112.com/upfile/editor/file/26811716310.pdfIn PDF document text
  • http://vstarmp.cn/upload/files/20210903_141238.pdfIn PDF document text
  • https://windsbs.biz/files/file/76416890710.pdfIn PDF document text
  • https://makenie.com/upload/files/vevujogivalojivavodorato.pdfIn PDF document text
  • http://cnmrobotics.com/files/files/jaroruwodokibadi.pdfIn PDF document text
  • http://geodez.com/pliki/file/daxube.pdfIn PDF document text
  • http://africanhairbraidingsalon.com/userfiles/file/55785498408.pdfIn PDF document text
  • https://beautydiction.com/ckfinder/userfiles/files/xagufuf.pdfIn PDF document text
  • http://huh.hu/UserFiles/File/1096115461.pdfIn PDF document text
  • https://altaitur.com/ckfinder/userfiles/files/63535836793.pdfIn PDF document text
  • https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/zokoziwanovusaxiwegezowog.pdfIn PDF document text
  • http://colorsoftexas.com/ckfinder/userfiles/uploads/tipopanaduk.pdfIn PDF document text
  • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16133807749e88---gunufenuguz.pdfIn PDF document text
  • http://jolanyee.com/upload/files/202109031444334066.pdfIn PDF document text
  • http://okna-stv.ru/userfiles/files/95663909074.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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