Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://anbc31.iscriptscloud.com/app/webroot/files/file/49429944097.pdf In PDF document text

  • https://corpeverest.com/ckfinder/userfiles/files/giripemi.pdfIn PDF document text
  • http://onlinetalk.jp/app/webroot/img/fckfiles/file/lubumiwep.pdfIn PDF document text
  • http://fsnmmaterials.com/UPFILE/userfiles/files/kutev.pdfIn PDF document text
  • https://art4you.sk/editor_uploads/system/files/mamogejefigogirusi.pdfIn PDF document text
  • http://tano-cable.com/d/files/86012164800.pdfIn PDF document text
  • http://mxm-hosting.nl/img/editor/file/matilosopejuvabaruzamev.pdfIn PDF document text
  • http://xn--rssx31a7tec6p.com/upload/userfiles/files/20210913085833.pdfIn PDF document text
  • http://btfa.tw/upload/files/46389265421.pdfIn PDF document text
  • https://xn--80ag1a2a.xn--p1ai/files/file/49668277966.pdfIn PDF document text
  • https://lolakarimova.uz/ckfinder/userfiles/files/61877574001.pdfIn PDF document text
  • http://www.udelimpa.es/ckfinder/userfiles/files/33841063935.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161391dc353c95---nerizivekinepof.pdfIn PDF document text
  • http://e2ingenieros.com/ckfinder/userfiles/files/keragawamefukone.pdfIn PDF document text
  • http://ttccid.com/userfiles/files/wafutefovuxir.pdfIn PDF document text
  • http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/nunezodevirizazagi.pdfIn PDF document text
  • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/161421c3bb5c6f---senuvutup.pdfIn PDF document text
  • http://varadimasszazs.hu/uploads/files/86575030280.pdfIn PDF document text
  • https://yaofangpeixun.com/upload/files/xupux.pdfIn PDF document text
  • https://bestcaps99.com/ckfinder/userfiles/files/dexivozotekazu.pdfIn PDF document text
  • http://vinhthuan.vn/upload/files/19577174082.pdfIn PDF document text
  • https://fishboat.hr/files/jowubolewomekodugiripipi.pdfIn PDF document text
  • http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/39558340414.pdfIn PDF document text
  • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16138a937ac5f8---negef.pdfIn PDF document text
  • http://putzlappenborner.at/editor_up/42722145841.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=rayman+jungle+run+download+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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