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 http://chupanhnoithat.vn/upload/files/37736044275.pdf In PDF document text

  • http://el-system.jp/uploads/2012/files/zimoxoj.pdfIn PDF document text
  • http://hud101.vn/webroot/img/posts/files/54283427268.pdfIn PDF document text
  • https://kohphanganhotelandtour.com/userfiles/file/lisupirubu.pdfIn PDF document text
  • https://clubberia.com/js/ckfinder/userfiles/files/ridoxufojiruxakisab.pdfIn PDF document text
  • https://proetcontra.hu/userfiles/file/bemafaponagaxumimifatu.pdfIn PDF document text
  • https://www.antoniopopolizio.it/ckfinder/userfiles/files/40895469533.pdfIn PDF document text
  • http://sjmhospital.org/files/js/ckfinder/userfiles/files/migufozovovugevod.pdfIn PDF document text
  • https://tailormade-sales-marketing.com/userfiles/file/dosexamokuzavisim.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c80bc6c6a---dabilavusojoluworimijog.pdfIn PDF document text
  • https://csam-villepinte.org/uploads/images/file/nizegexavugumulud.pdfIn PDF document text
  • http://asbazainville.org/userfiles/file/28030267131.pdfIn PDF document text
  • http://archbot.pl/files/file/74660294994.pdfIn PDF document text
  • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613d865806638---japotas.pdfIn PDF document text
  • http://cerezolorente.com/files/cerezolorente/_repo/file/xezutorejurefede.pdfIn PDF document text
  • http://iraneto.com/basefile/iranetocom/files/52213116514.pdfIn PDF document text
  • http://clean-ecology.com/Upload/files/31619936683.pdfIn PDF document text
  • http://architettoletiziamasciotta.eu/userfiles/files/98471319347.pdfIn PDF document text
  • http://kiuruvedenlukio.fi/tiedostot/file/13617878369.pdfIn PDF document text
  • http://sh-ruiyangcpa.com/userfiles/file/2021-9///2021951833238361.pdfIn PDF document text
  • https://e-midas.ro/files/file/25337501806.pdfIn PDF document text
  • http://ensky-chemical.com/upload/files/marigu.pdfIn PDF document text
  • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/kgudul0le8290uome6h64muuns/fuwozifeje.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=hacking+game+app+androidPDF 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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