Malicious PDF — malware analysis report

Static analysis result for SHA-256 dff735ea0c28235b…

MALICIOUS

PDF

47.9 KB Created: 2021-08-05 02:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: b0121d011a4f9ae1d0ecdfc349f731bf SHA-1: 8baba63c2462b0029ce497fc947e418fe32d6351 SHA-256: dff735ea0c28235bb73787d0c762e333c289f27ec61f67afe5ee6daabd373055
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as a phishing trojan by ClamAV. It contains a link farm pointing to multiple compromised WordPress upload directories, suggesting an attempt to host malicious content. The embedded URLs likely serve as redirects to phishing pages or malware download sites.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4820

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://binarbaidfabrication.com/public_html/userfiles/file/bipeduvufesulitutower.pdf In PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0ff23e034---polupimurototozofifela.pdfIn PDF document text
    • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608445d47859f---nibipafotuzarewod.pdfIn PDF document text
    • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/7nuko31mfbvegu70obuddd5ue4/53479092141.pdfIn PDF document text
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/40cfcedb283fbcc175ca550e5a5346fa/57068646352.pdfIn PDF document text
    • http://alphasigmaoverseas.com/userfiles/file/76206259959.pdfIn PDF document text
    • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/8uei1o0noqh9ragb343e8mjmjl/1714257094.pdfIn PDF document text
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/dc50a14641d75ac624d9ef3ac7464acc/61146273969.pdfIn PDF document text
    • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcrafIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=ali+kundilli+2+full+izle+1080pPDF link annotation
    • http://cluster006.ovh.net/~greeters/be/ckfinder/userfiles/files/boruwepefigabuwapoweb.pdfIn PDF document text

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