Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dd0a3e110bdc989…

MALICIOUS

PDF

53.8 KB Created: 2021-09-18 07:05:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d01ea1e876ddaa2bd95b7bcdb65004e7 SHA-1: abedc20c0877b654716e69628379016464487222 SHA-256: 1dd0a3e110bdc989353b7578502946cbc1880e554b6c79633af7107b1ac9b2d0
132 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent. Several external URIs were extracted, with one pointing to a domain associated with a link farm, suggesting a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6752

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://9ja-bet.com/userfiles/file/zawelikoz.pdf
    • https://s-oil.hoakhanh.vn/uploads/image/files/zuluretivanir.pdf
    • http://nawaress.com/webroot/js/ckfinder/userfiles/files/80892895690.pdf
    • http://norrlandet.se/userfiles/file/77730552063.pdf
    • http://087334211.kad.tw/kads/ckfinder/userfiles/files/wimiwagumozogu.pdf
    • https://k85shj16h-561lt.com/contents/files/50000942805.pdf
    • http://fra2ange.it/userfiles/files/32128731620.pdf
    • https://klubkanine.com/home/klub/public_html/ckfinder/userfiles/files/gowusagerujepidorur.pdf
    • http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wopitadevabaramunoril.pdf
    • http://lapenya.cat/imgjovesnaves/file/jimuwobigawore.pdf
    • http://casaatlan
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+log+out+of+hotmail+on+windows+10

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