Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f9e30180249f211…

MALICIOUS

PDF

44.2 KB Created: 2021-06-05 22:53:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 219c66afa506c9748e9b1a9ab92c77ff SHA-1: 0b58017c445390697009e54d58310b92c037ca14 SHA-256: 9f9e30180249f2119bceb8e8885aae995b0839b1773eb660e57e0374d3054caa
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links to external sites, many hosted on compromised WordPress installations, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, contains keywords related to driver downloads, indicating a pretext for users to click malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7810

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://queure.ru/uplcv?utm_term=msi+n1996+motherboard+drivers+for+windows+xp+free+download PDF link annotation
    • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/eupookf4q76qsrbf3uj7enep95/xunikudij.pdfIn PDF document text
    • https://bbpartner.cz/userfiles/file/ruvedibegezurasapudevuf.pdfIn PDF document text
    • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/kpo54r8evt0l2dqcn38668q045/98675027654.pdfIn PDF document text
    • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/f84ae1af0b624ba731a51e84238b4e45/gupugefejelop.pdfIn PDF document text
    • https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/219988e52f7bd924949a59968317bb37/82366678488.pdfIn PDF document text
    • https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085cb2337d8e---31564903340.pdfIn PDF document text
    • https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/c961f9287dc59938faf92cead842ae1a/36761244786.pdfIn PDF document text
    • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/cfmlnq1dt1u9qsqe93750h4mv3/gafob.pdfIn PDF document text
    • https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/960be4ebfb7e8d8132c8428810ed9f48/sexafa.pdfIn PDF document text
    • https://ascinfratech.com/clientprojects/trading/file/94957911769.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c07b293edb---6147363939.pdfIn PDF document text
    • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/cf739dec118333e4fe60016ad8510bf8/bibuwemepozanovoxixejedat.pdfIn PDF document text
    • https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/952ceb6230d75aabf3b1161c77aecb9f/difogagiwevoliri.pdfIn PDF document text
    • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c088712ce---mefanexatajija.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/ec0dacf8e5c02b35ab433f85a3358e1b/bobirolubo.pdfIn PDF document text
    • http://zhengfutz.com/v15/Upload/file/2021516441455815.pdfIn PDF document text
    • https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/caedd464fe71b1fa50e697add3c7dbf6/80420938065.pdfIn PDF document text
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd71245b41---70813869967.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.