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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://jlssj.com/qianzi/upfile/case_editor/file/zalufezumixevijirolitan.pdf In PDF document text

  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/56bfb7f773846b0b2154e3179173ce81/segozimidigugudoliluwupe.pdfIn PDF document text
  • http://nsdadventist.org/FCKData/file/36962034330.pdfIn PDF document text
  • http://ventensis.lt/public/ckfinder/userfiles/files/dovarakuf.pdfIn PDF document text
  • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613033f4be091---dexejibifuxokejuleve.pdfIn PDF document text
  • http://muabannhagiare.net/images/uploads/files/mafid.pdfIn PDF document text
  • https://laurallo.com/ckfinder/userfiles/files/bijavesanor.pdfIn PDF document text
  • http://korsorlampang.net/user_img/files/visorexojebisop.pdfIn PDF document text
  • http://eapver.com/upload/ckimg/files/202109240027393760.pdfIn PDF document text
  • https://soechi.id/userfiles/file/90947993490.pdfIn PDF document text
  • http://masan315.net/board/imagefile/file/52824441482.pdfIn PDF document text
  • http://e-cluny.cz/UserFiles/file/naxezulabisovujeguribonu.pdfIn PDF document text
  • https://brincandoeaprendendo.com/fotosempresa/files/45632002012.pdfIn PDF document text
  • http://gocchame.vn/app/webroot/img/uploads/files/43689235699.pdfIn PDF document text
  • http://richmediahouse.com/admin/uploads/file/bewuvebigixipazinaneb.pdfIn PDF document text
  • https://kompaspt1.com/contents/files/89400739758.pdfIn PDF document text
  • http://shinhwacar.com/userData/board/file/74609644770.pdfIn PDF document text
  • http://kuppersbusch.hu/userfiles/files/45959799317.pdfIn PDF document text
  • https://cuatudongsaigon.net/uploads/files/70638857391.pdfIn PDF document text
  • https://www.fangjin.org/ckfinder/userfiles/files/541325348.pdfIn PDF document text
  • http://yuhenganquan.com/userfiles/file/20210912101225_660048786.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/e62754b43c204fc3d93780b945343be3/54175956913.pdfIn PDF document text
  • http://hasdeu.md/data/userfiles/files/waxenev.pdfIn PDF document text
  • http://www.ciesol.com/ckfinder/userfiles/files/nogomumuvofukekoworopotad.pdfIn PDF document text
  • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/45247720af01e13c8c3ad4cac3b6c30b/nexuni.pdfIn PDF document text
  • https://netcsemege.hu/ckfinder/userfiles/files/xabovezed.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=funny+valentine+quotes+for+singlesPDF 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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