Malicious PDF — malware analysis report

Static analysis result for SHA-256 95014a64214b7c2d…

MALICIOUS

PDF

372.8 KB Created: 2015-08-28 18:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f64e83827da63be720ad4f3b22439ad3 SHA-1: 4d0beb05f0f4fa7ae3c465e15ebe918f86515318 SHA-256: 95014a64214b7c2d9bcb083c4cf1733ab7ce08f8b5d7ffb6c95e544e6cdd1180
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 likely used to direct users to a malicious website. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

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%BF%D0%B5%D1%81%D0%BD%D0%B8+%D0%B8%D0%B7+%D1%81%D0%B5%D1%80%D0%B8%D0%B0%D0%BB%D0%B0+%D0%B2%D0%B8%D0%BE%D0%BB%D0%B5%D1%82%D1%82%D0%B0+%D1%82%D0%B5%D0%BA%D1%81%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809599_skachat__multik__madagaskar_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810561_plakatuy__sssr_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810119_skachat__porno__iznasilovanie_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005921d.bin
60954ba8b320630e791bac86a9135759c8f138656363c3e4d8c3285193f9c220		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5921D 7140 bytes
font_01_sfnt_off0005a6e4.bin
4f699205526a664cd7bef652fd2083d67ec187e7013a4256d8e7b81e62a0ec14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6E4 14332 bytes

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