Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7f64ef172c9fbd…

MALICIOUS

PDF

52.7 KB Created: 2021-09-01 17:07:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: dd1ed4e78ec83fd4198bcf428bab36ff SHA-1: 8bdc7a8c8354571f05baed02e3c8da6e88ffbf81 SHA-256: 9d7f64ef172c9fbd8f9327be0b4b588e7d3c33dd9966fa122320365bf0c4aa01
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links pointing to websites hosted on compromised CMS platforms, indicating a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6277

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://garglob.ru/uplcv?utm_term=poe+cast+while+channeling PDF link annotation
    • http://teleinwestor.com/userfiles/file/jutijugobe.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607785b5babce---fevipevobirug.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609f263ab12c2---57547616267.pdfIn PDF document text
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/4bc6c4cc858eb93fa870abfe9524c48b/68315740072.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe784a378e---kalobekobafivajiwomemi.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/86iahhg4io5bbd6vhdfbjhkinf/finoxilelibenanolonosuxab.pdfIn PDF document text
    • https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/rumal.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/jd15se1o586trc5jmva0qi6827/dukefozeridakizenud.pdfIn PDF document text
    • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089914bc213a---3858186444.pdfIn PDF document text
    • http://scales-center.com/shop/fck_file/file/43630006033.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160729cba8c503---paretutetomonosez.pdfIn PDF document text
    • https://heatingboiler.ca/fck_upload/file/fukusukebuguzogovas.pdfIn PDF document text
    • https://dp-engineers.com/admin/userfiles/file/10873668314.pdfIn PDF document text
    • http://urgentcarepb.net/userfiles/file/piwawuwanefaxerexugofij.pdfIn PDF document text
    • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/2bc2aaa2da5d8c41a420a812b1a804a5/86640347468.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/gr4r5flufbk9cgvdfh25o34i70/rubinogofakos.pdfIn PDF document text
    • http://cassotech.nl/site/data/ws/files/38938470705.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608b55baa9660---dexegemivewit.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94fbd4bda0---bojabuderepipakevafaba.pdfIn PDF document text
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/0n7c3ima870jef9h44gr0m4kkd/gavekivefabifaxozala.pdfIn PDF document text
    • http://shimamura-mail-order.com/userfiles/file/27775679931.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910cdb92cb2---4896533218.pdfIn PDF document text
    • http://market-oborudovanie.ru/upload/file/91908705119.pdfIn PDF document text

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