Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab5e2379076de8d…

MALICIOUS

PDF

57.2 KB Created: 2021-06-07 10:32:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d5351134292568acbf48a3066aa4229 SHA-1: 202faa2b66d2e4db4e93fcca8cfc7808521aabed SHA-256: 0ab5e2379076de8d5f62525b16514ff5c1624f77c2ecc7bd6d7c263476324ae6
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was detected as malicious by ClamAV and ML classifiers. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting it's part of a link farm designed to distribute malware. The document body, though heavily obfuscated, appears to be a lure related to funeral program templates, likely intended to trick users into visiting malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7545

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://inwebjor.ru/uplcv?utm_term=funeral+program+template+catholic+mass
    • http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/74bdc3a0a2e68e392ccdee2afbe99ec8/xazive.pdf
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609697b07a9d4---69137147806.pdf
    • http://allprintusa.com/admin/images/file/waxawasodopikul.pdf
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af5e35c00e8---48804209927.pdf
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/1ef8e3e0d6f760d1522c1d385d213b7a/narap.pdf
    • http://aceonlinementors.com/userfiles/file/21889537319.pdf
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/396e87f6fd68670f72546d2361507a6a/7873050470.pdf
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1d8eb9cda---84315178028.pdf
    • https://serini-cloud.pl/uploads/editor/file/90344140109.pdf
    • https://vestol.bg/files/file/renelazer.pdf
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16087a8889d7d0---kubez.pdf
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d38ece3d98---22062581224.pdf
    • https://bodegoncriollo.com/userfiles/file/38749397247.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608250c06f21e---salakume.pdf
    • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b75f79a4a9d---72980729417.pdf
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/vtl92iqaaoh6vdhua66n3er3fh/31343625613.pdf
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/6hg7b471qgrmaaf9qs3ssuf918/duxebulijodironol.pdf

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