Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
  Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=office+2013+preactivated+download PDF link annotation

  • http://hghs61.com/clients/9/98/9814c5f28b4e93efd1f74733a9fd6b0f/File/97473756524.pdfIn PDF document text
  • http://ninda.vn/userfiles/files/mabojigifomemetu.pdfIn PDF document text
  • http://ruihuitax.com/files/file/genolosiwuxazapefamunup.pdfIn PDF document text
  • https://blsautomation.com/ckfinder/userfiles/files/kalonegulelejosi.pdfIn PDF document text
  • http://sshs61.com/clients/6/60/60e739d5a8cf4a6710e4f064fd99417d/File/91788659662.pdfIn PDF document text
  • http://aaaexpressheating.com/userfiles/file/16170242456.pdfIn PDF document text
  • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e223617dc0---15833129805.pdfIn PDF document text
  • https://vanphongphampmc.com/upload/files/89978772567.pdfIn PDF document text
  • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/4pk0p0tdcvg03n4jtve4v73in7/puvewepamudozozimi.pdfIn PDF document text
  • https://loyd.rs/images/file/93705378705.pdfIn PDF document text
  • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/72936904377.pdfIn PDF document text
  • https://cancelaria.pl/galeria/file/nufubodudonexuboj.pdfIn PDF document text
  • http://eakqshop.com/ckfinder/images_store/files/tufaterel.pdfIn PDF document text
  • http://aj-freight.com/ckfinder/userfiles/files/rebewedigonefamesuga.pdfIn PDF document text
  • https://dalnoboy.com/data/filestorage/upload/files/93607660622.pdfIn PDF document text
  • http://bellina.pl/userfiles/file/92072137559.pdfIn PDF document text
  • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/ds2thq0751gl3kcjmoh2o8o47o/kefelovupenajoxem.pdfIn PDF document text
  • http://alessandrobelleseveterinario.eu/userfiles/files/migepo.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/dhuvr4qfpniecjudgteipv4b8n/67345554930.pdfIn PDF document text
  • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d0dc92a108---nakipe.pdfIn PDF document text
  • https://duhocblueocean.vn/ckfinder/userfiles/files/62575122888.pdfIn PDF document text
  • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160bef2ba0fa80---teraloz.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608f6ead5c5fb---70551230469.pdfIn PDF document text
  • https://eseninternational.com/uploads/files/67847019182.pdfIn PDF document text
  • https://driftwoodcc.com/userfiles/files/11693354987.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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