Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://xn--fct5g39pjpo.tw/upload/leakstop/files/59798229254.pdf In PDF document text

  • http://jaatkinson.com/userimages/kodek.pdfIn PDF document text
  • http://jjmcp.jp/userfiles/Image/file/puwibimeluruniwipa.pdfIn PDF document text
  • http://vin-baietii.ro/ckfinder/userfiles/files/73499538429.pdfIn PDF document text
  • https://attackworkoutprogram.com/app/webroot/files/ckfinder/userfiles/files/84369608865.pdfIn PDF document text
  • http://tucsokszekszard.hu/images/news/file/31169360903.pdfIn PDF document text
  • http://pasted-radio.de/web/files/damumogefaz.pdfIn PDF document text
  • https://elmaga.lt/components/com_mijoshop/opencart/image/data/files/57250232889.pdfIn PDF document text
  • http://birizgardenhotel.com/userfiles/file/97371990667.pdfIn PDF document text
  • http://sadrokartonyhk.cz/images/fckfiles/file/defewuxamaxifid.pdfIn PDF document text
  • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/kigotekagidefebatududuf.pdfIn PDF document text
  • http://hichipper.com/hichipper/uploadfile/file/2021101400520073499.pdfIn PDF document text
  • https://cryptoshift.be/anaeter_capital/siteadmin/userfiles/files/50275325165.pdfIn PDF document text
  • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/5d6fd81064c1f2408d1751e388871c1e/47719649243.pdfIn PDF document text
  • https://1tlstar.com/storage/uploads/files/35025416932.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/eab0215ad7b8d25702c289789b341b77/76176368856.pdfIn PDF document text
  • http://theonejsc.com/userfiles/file/93200119387.pdfIn PDF document text
  • https://sukaunited4d.vip/contents/files/tenupaxiruvezubi.pdfIn PDF document text
  • https://karpzbeldowa.pl/uploads/userfiles/files/89195101384.pdfIn PDF document text
  • https://zemiigori.com/uploads/file/95516588321.pdfIn PDF document text
  • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/161392be93f344---zusev.pdfIn PDF document text
  • http://joy05.com/_UploadFile/Images/file/55287688028.pdfIn PDF document text
  • http://185.33.116.145/~acus01/upload/files/fiwase.pdfPDF link annotation
  • http://xn--tnqz8hz5cb8l.com/upload/files/65501800079.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/1hHberoKktI/uplcv?utm_term=tenderize+cooked+meat+in+pressure+cookerPDF 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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