Malicious PDF — malware analysis report

Static analysis result for SHA-256 67b588da63381e08…

MALICIOUS

PDF

47.0 KB Created: 2021-09-20 11:47:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: a7341105fae1cb860116610040e22831 SHA-1: 44b0e48ab878c5745d3a67bd1daec7d38fb1e119 SHA-256: 67b588da63381e0832e2214a429d6a6cf59eae1ff68a28d66873fd57d6eeeb0e
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, many of which are presented as disposable link farms, suggesting an attempt to redirect users to external content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of many embedded URLs and the heuristic firing for PDF_SEO_DISPOSABLE_LINK_FARM indicate a pattern of using the document as a lure to external sites, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7355

Heuristics 3

  • 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 http://ncteonline.com/userfiles/file/3504382546.pdf In PDF document text
    • http://tuzvedo.hu/elemek/file/53005323751.pdfIn PDF document text
    • https://x-software.cz/data/file/vumowuwado.pdfIn PDF document text
    • https://podiummagazinenews.com/ckfinder/userfiles/files/45555523855.pdfIn PDF document text
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/ce1ce2b880966fdbe5ceb5358acfac99/zojapanefexote.pdfIn PDF document text
    • http://www.blueoak.fr/image/file/85079153779.pdfIn PDF document text
    • https://duvanco.be/docs/files/laxusex.pdfIn PDF document text
    • http://technestudio.eu/userfiles/files/xisepewusesatanufos.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/16147c71ea4ba0---rutejarakewotegopif.pdfIn PDF document text
    • http://ybshajiang.com/userfiles/file/2021-09-10/210910122741927470heofth94h5rm.pdfIn PDF document text
    • http://guowangcable.com/d/files/32377411514.pdfIn PDF document text
    • http://sns.hu/_user/file/57978420512.pdfIn PDF document text
    • http://katyababash.com/images/uploads/file/kijabinimofur.pdfIn PDF document text
    • http://lidaoxc.com/upload/files/75989904651.pdfIn PDF document text
    • http://chuanghuilaw.com/filespath/files/20210901133307.pdfIn PDF document text
    • http://www.como-grup.ro/fisiere/file/vugixujuk.pdfIn PDF document text
    • https://www.leasing.net.in/ckfinder/userfiles/files/jizujoxukujadamokaximadun.pdfIn PDF document text
    • http://mnogonomerov.ru/uploads/file/28681555891.pdfIn PDF document text
    • http://exoticland.bg/upload/files/files/fujubasuzazatemudu.pdfIn PDF document text
    • http://akbarestate.com/survey/userfiles/files/55930475266.pdfIn PDF document text
    • http://businessnavigator.in/ckeditor/uploads/files/tukabuna.pdfIn PDF document text
    • http://studiodara.eu/userfiles/files/kagunobiruxevo.pdfIn PDF document text
    • http://hstairan.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/lonoposonureselusugaxo.pdfIn PDF document text
    • https://afgventuregroup.com/cfiles/file/sagutefosomobew.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=tamilrockers+2019+hd+movies+downloadPDF link annotation
    • http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/81175953585.pdfIn PDF document text