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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://synerhu.ru/uplcv?utm_term=instagram+reels+video+download+without+watermark PDF link annotation

  • http://topstec.com/d/files/wifotolorupimikanozut.pdfIn PDF document text
  • http://bkht.vn/userfiles/file/77510760515.pdfIn PDF document text
  • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614b6cb6c9cdd---69524296624.pdfIn PDF document text
  • http://bakefruit.com/uploads/files/202109270956009937.pdfIn PDF document text
  • https://fiscconsulting.com/userfiles/file/6220841139.pdfIn PDF document text
  • http://voszveszprem.hu/_user/file/85432393238.pdfIn PDF document text
  • https://seger.cz/userfiles/file/vuzokejefubavasapen.pdfIn PDF document text
  • http://velomagazin.hu/UserFiles/file/16827569766.pdfIn PDF document text
  • http://kirakuramenandsushi.com/uploads/files/47426281092.pdfIn PDF document text
  • http://phuwangnam.com/user_file/file/91505521309.pdfIn PDF document text
  • https://ytdrive.com/CKEdit/upload/files/jamazifokerepivexo.pdfIn PDF document text
  • http://eminenceinc.com/userfiles/file/junimexajezexivel.pdfIn PDF document text
  • https://aspaeng.com/files/image/files/71262793115.pdfIn PDF document text
  • http://jkbprivateiti.com/userfiles/file/jebejenopozunagubami.pdfIn PDF document text
  • http://batterseataxi.com/survey/userfiles/files/vaxitaruxolitafe.pdfIn PDF document text
  • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/a8e6292f6c20d26515a10ee488c40f31/1635209837.pdfIn PDF document text
  • https://auditorescr.com/ckfinder/userfiles/files/28512065291.pdfIn PDF document text
  • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16150b694c4371---gufotot.pdfIn PDF document text
  • http://rama-sp.com/rama/webroot/js/ckfinder/userfiles/files/45016601139.pdfIn PDF document text
  • https://mudraconsultancy.com/uploads/files/baminuxaji.pdfIn PDF document text
  • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16147752ac8daa---34546307822.pdfIn PDF document text
  • http://hoanggiaphatstone.com/upload/files/pinoviferapigiwewowe.pdfIn PDF document text
  • http://brukikostka.pl/uploads/page/file/golebixunanulube.pdfIn PDF document text
  • http://kbinteriery.cz/userfiles/file/zawenofasopakabizitow.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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