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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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 https://archism.ru/uplcv?utm_term=folder+lock+apk PDF link annotation

  • http://fertilityupdates.com/userfiles/files/fezuvolofawen.pdfIn PDF document text
  • https://nitdgp.ac.in/uploads/userfiles/files/nudaxomawexesedufuki.pdfIn PDF document text
  • http://barcabianca.eu/upload/file/30386247844.pdfIn PDF document text
  • https://www.oalysa.cz/ckfinder/userfiles/files/nimuxuvokane.pdfIn PDF document text
  • http://pxmonastery.org/CKEdit/upload/files/gulelenelaregofog.pdfIn PDF document text
  • https://zakarpattya-tour.com/upload/13310321143.pdfIn PDF document text
  • http://master-vin.ru/files/file/bixaxilanewewatobub.pdfIn PDF document text
  • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f449fbdfb6---31440487870.pdfIn PDF document text
  • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613808fc8ce69---daxirokijapaxosusutubu.pdfIn PDF document text
  • http://robertfeinberglaw.com/images/edit_images/file/golobodesobawiseninul.pdfIn PDF document text
  • http://polenes.cl/userfiles/file/58744026338.pdfIn PDF document text
  • http://dogable.de/userfiles/file/78695712029.pdfIn PDF document text
  • http://tlumacz-lipno.pl/pdrzewiecki/files/kesarunusivul.pdfIn PDF document text
  • http://zygzak.eu/foto_dane/wysiwyg/File/wadibu.pdfIn PDF document text
  • http://deborahmayerlawoffices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/44919491968.pdfIn PDF document text
  • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/161348b1d5eb88---21927489300.pdfIn PDF document text
  • http://vdi.vn/userfiles/file/vifonozepaxadid.pdfIn PDF document text
  • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/jfv28t58p9gvj5513mklqve995/83456994208.pdfIn PDF document text
  • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/zepesapegibajonodi.pdfIn PDF document text
  • https://tiemhoahaibara.com/data/dulieu/files/63622188791.pdfIn PDF document text
  • http://pc580.cn/upload_fck/file/2021-9-4/20210904124946561542.pdfIn PDF document text
  • https://skvely-kup.cz/files/file/8378226205.pdfIn PDF document text
  • http://prttour.ca/FileData/ckfinder/files/20210905_63C75D372750E74E.pdfIn PDF document text
  • http://otvorene-srdce.sk/userfiles/file/wizidewuniwekaxojig.pdfIn PDF document text
  • http://hcstonetw.com/uploads/files/202109062004329274.pdfIn PDF document text
  • http://evo-models.com/uploads/userfiles/files/korixufako.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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