Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e49e3b32926294…

MALICIOUS

PDF

52.8 KB Created: 2021-07-25 22:07:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 0dfc5cf97c2a92544ec31c23f9732b93 SHA-1: 013b7dc4783633c089c342db16d33959f1436e84 SHA-256: e5e49e3b329262949cb65cfe7b1bddc5ff20cf2d1acea088e32037758016f891
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. This script likely redirects the user to external URLs, several of which are hosted on compromised WordPress sites, indicating a phishing or malware distribution attempt. The ClamAV detection further supports the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4563

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.
  • 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://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/3a27f8cc261454eaa93e37f2a41fd154/98927437795.pdf In PDF document text
    • https://salvamontbihor.ro/app/webroot/files/userfiles/files/20807112430.pdfIn PDF document text
    • https://www.jedeminute.de/wp-content/plugins/super-forms/uploads/php/files/7olsnsqhvcgt6ed63r4e246k1g/folofaxuzobijoluresexa.pdfIn PDF document text
    • http://quimis.net/js/ckfinder/userfiles/files/wewopulizuku.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acef40de671---surujomopewol.pdfIn PDF document text
    • http://dainichiji.com/upload_ckr/files/zezuxokonop.pdfIn PDF document text
    • https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/04ca66d89d0269b18c74aa52db8ca49f/bovituwurefujur.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=megalodon+rc+car+charger+instructionsPDF link annotation

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