Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3ff164241f29663…

MALICIOUS

PDF

359.0 KB Created: 2015-08-21 09:12:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a7d543a17518781da21f0ffcf8798481 SHA-1: 64b378169463400a01f42581019e564620928cc0 SHA-256: f3ff164241f29663d69c041ca8c709852dc328549fd73aa8fd2dd78bc8af2c46
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains an embedded link to a known malicious redirector. The file's metadata indicates it was generated by wkhtmltopdf, a tool often abused for creating malicious documents. The primary attack vector is the redirection to the suspicious URL, which is likely intended to deliver a phishing page or a second-stage payload.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3581

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B3%D1%82%D0%B0+%D1%81%D0%B0%D0%BD+%D0%B0%D0%BD%D0%B4%D1%80%D0%B5%D0%B0%D1%81+%D0%BC%D1%83%D0%BB%D1%8C%D1%82%D0%B8%D0%BF%D0%BB%D0%B5%D0%B5%D1%80+03%D0%B5+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005539e.bin
312759f39f231296a991d5b096b4a6265dfe95f11b1ae1fcb8b6a86a10eebfbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5539E 10152 bytes
font_01_sfnt_off00056fc1.bin
2e4d55fefbe7d790cb456ac91a131244c393a50bb40cf8b7108eca01fb2fb6c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56FC1 14212 bytes

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