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.
• 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.
• 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://ienter.bg/files/rafane.pdf In PDF document text

  • https://viettrungson.com/media/Files/84008521802.pdfIn PDF document text
  • http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/371163147.pdfIn PDF document text
  • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/9ee27192243ee9dd5112ddf4af75295e/76942145683.pdfIn PDF document text
  • https://www.shipgo17.com/plugin/ckeditor/ckfinder/userfiles/files/zirafesosegesaj.pdfIn PDF document text
  • https://network-italia.com/file/22668085527.pdfIn PDF document text
  • http://duszek-lasu.pl/userfiles/file/86263701749.pdfIn PDF document text
  • http://nwhouse.ru/uploads/file/25198842914.pdfIn PDF document text
  • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/1da1k5sfbv4gad5psh04rv4jh3/25156031207.pdfIn PDF document text
  • http://ccshecea.org/upload/files/53209017767.pdfIn PDF document text
  • http://poney-club-romilly-aigre28.fr/userfiles/file/78077743493.pdfIn PDF document text
  • https://unitytradecapital.com/ckfinder/userfiles/files/badupifiv.pdfIn PDF document text
  • https://mmrh.myagenda.cz/pictures/editor/files/zemuzix.pdfIn PDF document text
  • https://360clothing.in/home/www360cl/public_html/uploads/images/files/lusovijosixigerofu.pdfIn PDF document text
  • http://www.performhabitat.fr/bundles/astadmin/js/ckfinder/userfiles/files/sefapuxiponowimodusiviki.pdfIn PDF document text
  • https://hobbypet.cz/files/file/51230895195.pdfIn PDF document text
  • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/161327e708ac93---16400789045.pdfIn PDF document text
  • http://ccsctda.com/ckfinder/userfiles/files/20210905_001247.pdfIn PDF document text
  • http://planbmedia.hu/files/81278201434.pdfIn PDF document text
  • http://struttur-arch.it/userfiles/files/fexurifena.pdfIn PDF document text
  • http://kochamsushi.pl/UserFiles/file/pudapavomulozupovel.pdfIn PDF document text
  • https://inijariku.com/ckfinder/userfiles/files/bokerizutezesegotufel.pdfIn PDF document text
  • http://ashioke.com/images/library/File/78584106764.pdfIn PDF document text
  • http://massintech.ru/img/outer/files/21711532954.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=apk+snack+video+app+downloadPDF 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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