Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a0a19159f316e67…

MALICIOUS

PDF

376.7 KB Created: 2015-08-28 11:30:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 16c128913ee6fb1e1deddc5cfa293563 SHA-1: 259537201ee248d0b414f71a8ec54deb89c6f04c SHA-256: 2a0a19159f316e67e53d46862cb8a8a89eb4fac224b764c6b1524a409cce529c
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%B4%D1%80%D0%B0%D0%B3%D1%83%D0%BD%D0%BA%D0%B8%D0%BD+%D0%B0%D0%BD%D0%B3%D0%BB%D0%B8%D0%B9%D1%81%D0%BA%D0%B8%D0%B9+%D1%8F%D0%B7%D1%8B%D0%BA+%D0%B0%D1%83%D0%B4%D0%B8%D0%BE%D0%BA%D1%83%D1%80%D1%81+%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&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802370_himicheskiy__sostav__moloka_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802369_slavyanoariyskie__veduy__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802360_panasonic_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059851.bin
83b4ba392201e7d620af7c9e1e5c24714730ec6ff02a12c31a3fd0150739a285		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59851 9024 bytes
font_01_sfnt_off0005b1e1.bin
747f39e2328bf3c403572108cfe6a3cd66ce3a62b5274b0d63b639ec66bafa9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1E1 16320 bytes

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