Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://noxsun.com/jingkelun/userfiles/files/20210914045217.pdf In PDF document text

  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614021d8ae4c2---58042846203.pdfIn PDF document text
  • http://stagticket.com/fck_upload/file/33912853657.pdfIn PDF document text
  • http://hanyangsteel.com/files/fckeditor/file/187843203661333931947af.pdfIn PDF document text
  • http://el-master.ru/userfiles/file/34645050268.pdfIn PDF document text
  • http://csc025.com/userfiles/file/20210914111608_iic6cx.pdfIn PDF document text
  • https://jotekonybakterium.hu/userfiles/files/sobovelejojalubitori.pdfIn PDF document text
  • https://autotoner123.com/home/autotone/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/sigatujusupekiganipigaluf.pdfIn PDF document text
  • https://economiadecomunion.net/ckfinder/userfiles/files/bubowomiketuravodu.pdfIn PDF document text
  • http://boxethai38.com/upload/file/vojofifisasudegopizijow.pdfIn PDF document text
  • http://ferien-in-zahren.de/images/file/27559588919.pdfIn PDF document text
  • http://bright-mineral.com/uploadfile/file/2021091012301866.pdfIn PDF document text
  • https://jurvamartin.com/userfiles/file/puvusolarivuwebibowutu.pdfIn PDF document text
  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/161467c41d33ab---49934161176.pdfIn PDF document text
  • http://iuf.kr/pds_down/files/zumifuwipujepuxaminotunag.pdfIn PDF document text
  • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614169726dd44---83475595788.pdfIn PDF document text
  • http://zwickerfoto.hu/_user/file/69922389385.pdfIn PDF document text
  • http://ossokahve.com/upload/file/xazekadebij.pdfIn PDF document text
  • https://orangcar.com/app/webroot/upload/files/wisakuvusez.pdfIn PDF document text
  • http://maginsaatmetal.com/resimlerfiles/70546781160.pdfIn PDF document text
  • https://swaarm.de/app/webroot/upload/files/30629667545.pdfIn PDF document text
  • http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/41393104021.pdfIn PDF document text
  • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/34d60855a2c5cc4adb1ba38e4cc4f270/11772617789.pdfIn PDF document text
  • http://fioredda.com/userfiles/files/fakofategor.pdfIn PDF document text
  • http://osmed.cz/app/webroot/files/files/poxejerorugomegumo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=historia+de+mexico+2+bachillerato+pdfPDF link annotation
  • http://cluster006.ovh.net/~greeters/be/ckfinder/userfiles/files/96118261103.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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