Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a615cb7dc179e17…

MALICIOUS

PDF

348.2 KB Created: 2015-08-24 00:39:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8eadf5a8845359994b8bfbc9cac581c0 SHA-1: bb93733fab3d9c5b43629608533093f73311b0fb SHA-256: 0a615cb7dc179e173c546be9975312b264dea0b4b372c834f2f8bbb613db2c75
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is flagged as malicious and likely serves as a lure for further malicious activity. While no scripts were directly extracted, the PDF structure and the malicious link strongly suggest an attempt to redirect the user to a harmful site, potentially for phishing or malware delivery.

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=%D0%A1%D0%B0%D0%BC%D0%BE%D0%B4%D0%B5%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F+%D0%BF%D0%BE%D0%B4%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%83%D0%B4%D0%BE%D1%87%D0%BA%D0%B8&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693701_3__sweep__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694501_skachat__russkuyu__tancevalnuyu_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694245_nvidia__nforce__networking_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052a57.bin
7912110f6de723ab4ebe36900bb2fe5c33c721a4b8d640c64064e3f584c13779		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52A57 8232 bytes
font_01_sfnt_off00054285.bin
e42a6e59a93bfd93b483de3e3aab7c15cfe73b402fd27d97d27778a731a15adf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54285 15464 bytes

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