Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 69 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://wastran.ru/uplcv?utm_term=subway+unlimited+money PDF link annotation

  • http://s-pack.kr/userfiles/file/20210928062244.pdfIn PDF document text
  • http://www.kymkarajok.net/tiedostot/files/78808802863.pdfIn PDF document text
  • http://mevlanaasm.com/resimler/files/tosav.pdfIn PDF document text
  • http://maurovalleferroarchitetto.eu/userfiles/files/56176337201.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/23788025602.pdfIn PDF document text
  • http://carszana.com/image/upload/File/daruvenuwiposujujidosoko.pdfIn PDF document text
  • http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/66169751496.pdfIn PDF document text
  • https://chiuman-hk.com/images/file/33757440381.pdfIn PDF document text
  • http://leinerpakgelatine.com/survey/userfiles/files/4379957776.pdfIn PDF document text
  • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/fb4df045fa244741b0db553cb1547295/99880151369.pdfIn PDF document text
  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b1016bbb00---32662853981.pdfIn PDF document text
  • https://dbmotorbrokers.com/userfiles/file/buxisazerubizolebojovo.pdfIn PDF document text
  • http://ventiliatoriai.lt/js/ckfinder/userfiles/files/fedaxirukixekure.pdfIn PDF document text
  • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614cc3496fe23---xanixunopodo.pdfIn PDF document text
  • http://sarvodurys.com/userfiles/file/gofix.pdfIn PDF document text
  • https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/26434972345.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/5a81d6ec807af1a7fcf9cc0194e3d38d/lorajezofapujajexoza.pdfIn PDF document text
  • https://mcsfood.com/images/file/kafemepedipagofiwuxili.pdfIn PDF document text
  • http://coimbra.hu/uploads/ckfinder/userfiles/files/72497892923.pdfIn PDF document text
  • https://villatoscana-pi.it/userfiles/file/73486818466.pdfIn PDF document text
  • https://canionglobal.com/FCKeditor/file/44865838912.pdfIn PDF document text
  • https://pearproperties.in/userfiles/file/fezuxesawodomimemak.pdfIn PDF document text
  • http://nsdadventist.org/FCKData/file/25131480262.pdfIn PDF document text
  • http://owop.challengersports.com/ckfinder/userfiles/files/87731978848.pdfIn PDF document text
  • https://raiporjai.com/piceditor/file/vegovebekikuvaforuvutetul.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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