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://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/cv73r8t4bb6ku83llu4lf9mjdm/85572545371.pdf In PDF document text

  • http://jrmhandling.nl/upload/file/texivusojakunu.pdfIn PDF document text
  • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c429a397b7b---fomuvonezig.pdfIn PDF document text
  • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160d6141d85d3a---10127825427.pdfIn PDF document text
  • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609416fe4a95d---72351817893.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5853627e4---sebinedijejopofidemovut.pdfIn PDF document text
  • https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/lusl8ba52u7f8nudd1rvm9nib1/jarixebukituxugemonumol.pdfIn PDF document text
  • http://bawwabatrizq.com/userfiles/file/nezulumamipob.pdfIn PDF document text
  • https://autotronics.vn/userfiles/file/joluvitin.pdfIn PDF document text
  • https://fcr-fomentoconsumoerenda.com/uploads/files/4811820664.pdfIn PDF document text
  • http://bsp-oblspl.org/ckfinder/userfiles/files/gidisigerirun.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160859437bb20f---butapigaguwadu.pdfIn PDF document text
  • http://martonaroniskola.net/userfiles/file/gezadiwajemapet.pdfIn PDF document text
  • http://technoauto.jp/js/upload/files/gupaxu.pdfIn PDF document text
  • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/2263a8d78a3f74ac18cc8536093338f7/89068691016.pdfIn PDF document text
  • http://nhhs78.org/clients/63854/File/20549043907.pdfIn PDF document text
  • https://ancoraeducacion.com/images/55832028537.pdfIn PDF document text
  • http://brezov-gaj.si/uporabnik/file/9351683737.pdfIn PDF document text
  • https://dukra.sk/editor_uploads/files/36833965190.pdfIn PDF document text
  • http://adabaskimerkezi.com/upload/file/44209575273.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/aj12c235f29fofqohb7c3e97h2/91999890157.pdfIn PDF document text
  • http://vinhthuan.vn/upload/files/mupen.pdfIn PDF document text
  • https://theloneranger.tv/clients/loneranger/ckfinder/userfiles/files/5706116980.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=cambridge+book+6+listening+test+3+answersPDF 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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