Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d584b1dd8a8acbe…

MALICIOUS

PDF

48.0 KB Created: 2021-06-19 12:38:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 25036c09ee75699d86664b6f5357c2db SHA-1: 9b0d7e994bb55fb918600a5f421fe5f4e9128b86 SHA-256: 3d584b1dd8a8acbec0f6a6d78cfe0ac4dcd970590069cdc2df9e43b61a26cbec
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to compromised WordPress upload directories and disposable hosting, suggesting a phishing or malware distribution campaign. The 'dj song download malayalam' UTM term indicates a lure to attract users to these malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest malicious intent, likely leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7192

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://catamma.ru/uplcv?utm_term=dj+song+download+malayalam PDF link annotation
    • https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/7abdcf9e588c6440fac7a16b4804e006/revojalikixoxidu.pdfIn PDF document text
    • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/ce8250ef9ab2fefcd5f847c955a3da52/jopalevapo.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4f86270df---xejonut.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/1f1b6198bc6d7390123769ac14f66b84/tavivebuxadoxukanajiles.pdfIn PDF document text
    • https://office-agglo-larochelle.fr/userfiles/file/8928030554.pdfIn PDF document text
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3cc82afbfd---resuduru.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160aa455013aa4---gibawogevoge.pdfIn PDF document text
    • https://tlproduct.com/userfiles/file/47337378015.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/o5i0vedvboa3v9cb8jf29jb120/14954432688.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f58d080bbe---binupilamojukeke.pdfIn PDF document text
    • http://www.ecvbrass.ch/user/web/file/lotitiro.pdfIn PDF document text
    • http://jirehenl.com/userfiles/file/062157192584.pdfIn PDF document text
    • http://bindashnews.com/userfiles/file/refiwituw.pdfIn PDF document text
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff876d0253---70793545190.pdfIn PDF document text

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