Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc9ea42e359c9169…

MALICIOUS

PDF

357.8 KB Created: 2015-08-26 09:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 135e504d0128a11983bb693df5b08a4d SHA-1: c382c5b75a7b3a3fbe6a767274c66c94ae07cdf9 SHA-256: fc9ea42e359c9169b629ab0dbb6080537aeec302f3a2b840fd1afe4787de524b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B+3d&charset=utf-8` is the primary indicator of malicious intent. This suggests the document is designed to lure users to a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B+3d&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751852_skachat__video_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751903_skachat__korotkiy__lyubovnuyy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751480_baykov__sigalov__zhelezobetonnuye_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055457.bin
01748ab58f5e0f301dc8738b6d9f3ec952e28c4d43e2c8ac74451037fb1c836a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55457 7916 bytes
font_01_sfnt_off00056b60.bin
962ef1a0ddd73cba98021c98db3a52053f2d0dcc38f78faf2f05ff6e19b15175		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56B60 14248 bytes

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