Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e7b209f622b3f8b…

MALICIOUS

PDF

47.0 KB Created: 2021-09-29 05:47:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d4eab2f3fb752428b234f029849a2933 SHA-1: b2b85e491feb1be387d4beb67657b31dff100a79 SHA-256: 0e7b209f622b3f8b44e8f672a0d4796f087b1cfd356fdd171013896a7c9230b4
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for exploiting PDF vulnerabilities or redirecting users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7419

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
  • 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
  • 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://ketchas.ru/uplcv?utm_term=yosemite+gta+5
    • http://southerncross-ex.com/images/blog/file/91850098471.pdf
    • http://77owship.netsociality.com/upload/files/zasurivokofufe.pdf
    • http://abwingstop.com/uploads/files/3315295413.pdf
    • https://oxi-dental.ro/imagini_ws/bojidejuguwotenudizudukow.pdf
    • https://grdr.org/paidel/ckfinder/userfiles/files/gebotabubinitonexovut.pdf
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613577e72ae84---butuzedalaragon.pdf
    • https://starfoil-mail.nl/uploads/wysiwyg/60041231911.pdf
    • http://nebovsem.ru/app/webroot/files/files/sajazawurip.pdf
    • http://alnadaoil.com/userfiles/file/73987524809.pdf
    • https://prawobrzeze.info/userfiles/file/79891228190.pdf
    • http://www.maderas-navarro.com/ckfinder/userfiles/files/73867837031.pdf
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614167cee5813---zafetaruvafad.pdf
    • http://www.dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/siwomenofi.pdf
    • http://chafewyuok.handysociality.com/upload/files/18331449353.pdf
    • http://daiichitelecom.com/uploads/news_file/97111235098.pdf
    • http://veiligheidssloten.nl/ckfinder/userfiles/files/pisajupuvoditixudiwobupu.pdf
    • http://jutaek.humenia.com/upload/userfiles/2021/09/files/210929103036.pdf
    • https://satuldelut.ro/ckfinder/userfiles/files/rukosufadetulizixij.pdf
    • http://soc-in.com/data/media/files/daxexut.pdf
    • https://inprovitparaguay.com/ckfinder/userfiles/files/8051979342.pdf
    • https://onecre.com/images/content/files/96406985088.pdf
    • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/gudimizudefemofos.pdf
    • https://www.vek-bg.com/app/templates/js/ckfinder/userfiles/files/68748032082.pdf
    • http://chinasoftcore.com/userfiles/file///boxamakofugoxoninu.pdf
    • http://vivatbacchus.hu/files/file/rebowewenosometixalinila.pdf

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