Malicious PDF — malware analysis report

Static analysis result for SHA-256 adf70c2cac1b136f…

MALICIOUS

PDF

361.7 KB Created: 2015-08-24 01:49:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a02e9b0dc5d6cb3adb25d68f2c00817f SHA-1: f2db6064014f787245523fc35a11f1201e573fcb SHA-256: adf70c2cac1b136feabfdbaf2504d44d2457e44a3ffbb412a36558a3eb04d423
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL `http://botcraftman.ru/` is identified as malicious. 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 delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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%BA%D0%B0%D0%BA%D1%83%D1%8E+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%BD%D0%B0%D0%B4%D0%BE+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D1%82%D0%BE%D0%B1%D1%8B+%D1%88%D0%BB%D0%B8+%D0%B8%D0%B3%D1%80%D1%8B+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4696/4696213_link2sd__skachat__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694943_skachat__film__zapretnaya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693930_partition__magic__90_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055bcf.bin
1e1af83fe2c2d877ccd870475e6b965ed1150b1ab6a3f82965321d1fdd0baadf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55BCF 8780 bytes
font_01_sfnt_off00057543.bin
171f65ef096f63f7473feddb4a7da3e678d9694cafb819f4f2ebd5afb0ef7cac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57543 16588 bytes

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