Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd0c5369cb597715…

MALICIOUS

PDF

348.4 KB Created: 2015-08-28 16:50:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ba585876faba2c200a0aa18c01c745ca SHA-1: 51975ac6cf104066c03eb49f2bade1075cb12eb4 SHA-256: bd0c5369cb597715c664cf6b5d6c8c76aaa071cdd1c523069bb364303ca69c2e
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, botcraftman.ru. This indicates the document's primary purpose is to lure the user to a potentially harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was heavily obfuscated and truncated, preventing further analysis of its specific content or intent beyond the malicious redirect.

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=Sony+vegas+pro+10+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE+%D1%83%D1%80%D0%BE%D0%BA%D0%B8+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802791_novuye__pesni__2015_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4804/4804392_didakticheskie__kartochki__po_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802719_zakon__o__kurenii_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052c33.bin
c99247df9c68530b17f9f3042c87a9448b7d349276848af7335c311667d3134a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52C33 8844 bytes
font_01_sfnt_off000543fc.bin
62dc49ca5a4bdcc30b5f3512822e152b04ac4f56fb171055a51879526cb9395f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x543FC 15144 bytes

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