Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0e7ec39b2e12a57…

MALICIOUS

PDF

360.6 KB Created: 2015-08-28 11:32:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e416312cd085e8c85b25fbf245105f4e SHA-1: a8764956ab47c6620b3e577cc815809c28607e31 SHA-256: e0e7ec39b2e12a571c00bb49397953a85d266ba4f20a0d560223323053c00164
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for containing links to known malicious redirector infrastructure. The primary malicious URL identified is http://botcraftman.ru/. While no scripts were extracted, the presence of malicious links strongly suggests the document's purpose is to redirect users to a compromised or malicious site. The ML classifier also provided a high confidence score for maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%BD%D0%BE%D1%82%D1%8B+%D0%B1%D0%B5%D0%BB%D0%BE%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B8%D1%85+%D0%BF%D0%B5%D1%81%D0%B5%D0%BD&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802410_divinity__2the__dragon_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802372_skachat__igru__kak_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802408_flash__player___.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055981.bin
0da7487572b805bdc7aa0eebaf511e9c5ef2a319b41c6d8dfad7e4f2a7ba061a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55981 8484 bytes
font_01_sfnt_off00057121.bin
7f6fe0c686b7a655473cc4e3d6addd4011809939144e9cd0669f78ab7773d960		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57121 16564 bytes

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