Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dca09e88e2807be…

MALICIOUS

PDF

348.9 KB Created: 2015-08-25 15:36:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-02
MD5: a26032d3d226954ae2b45315c5770722 SHA-1: e0437f792fbcf6d2084750d6848dbdffe52b52ad SHA-256: 3dca09e88e2807be83253d523c574132834a703e76a5d5647ae170672105c24c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious redirector infrastructure, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were directly extracted, the presence of embedded URLs and the nature of the heuristic firings suggest a phishing or redirection attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7846

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 http://botcraftman.ru/?lip&keyword=%D0%BC%D0%B0%D0%BB%D0%BE%D0%BB%D0%B5%D1%82%D0%BA%D0%B0+%D1%80%D0%B0%D0%B7%D0%B4%D0%B5%D0%BB%D0%B0%D1%81%D1%8C+%D1%87%D1%82%D0%BE%D0%B1+%D0%BF%D0%BE%D0%BF%D0%B0%D1%81%D1%82%D1%8C+%D0%B2+%D0%BA%D0%BB%D1%83%D0%B1&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4732/4732445_vk__locker_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731999_skachat__fotoinstrument__besplatno_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731390_programmuy__v_.pdfIn PDF document text

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