Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0bac3316cedaf50…

MALICIOUS

PDF

375.5 KB Created: 2015-08-26 09:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e095d342e7d9a3c723f63c82a9e191eb SHA-1: 0823408f2c08161ab61631db4494f0f3439bc696 SHA-256: d0bac3316cedaf5040daf55d88e62bbb0fd4fcaa27100456b24dc5cfeb4b077b
92 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for a link to known malicious redirector infrastructure. The primary IOC is the URL http://botcraftman.ru/, which is likely used to direct users to a malicious site. The document body is heavily obfuscated and does not provide clear user-facing text, but the presence of the malicious link strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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%BC%D1%83%D0%B7%D1%8B%D0%BA%D1%83+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B2%D0%B0%D0%BD%D1%8F+%D0%B2%D0%BE%D1%80%D0%BE%D0%B1%D0%B5%D0%B9+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC+%D0%B4%D1%83%D1%80%D0%B0%D0%BA%D0%B8+%D0%BD%D0%B0+%D0%B4%D0%BE%D1%80%D0%BE%D0%B3%D0%B5&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751882_skachat__video__toni_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751541_starcraft__2__heart_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751814_okruzhayuschiy__mir__2_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058f3b.bin
ab2970525eb5ae0eef3e29fdf509ed13509876375ac3e59416d22e170a3a6281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58F3B 9996 bytes
font_01_sfnt_off0005aacb.bin
b06512ab7a350b2b7c2543535569915f83ff3334073bc732f55d8465b0153c6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AACB 16688 bytes

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