Malicious PDF — malware analysis report

Static analysis result for SHA-256 729fe292ce70f57e…

MALICIOUS

PDF

347.4 KB Created: 2015-08-28 11:50:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 900c79b888ab82d7617136a2d2647821 SHA-1: 980fa8ef9f18a539d070cb847293e7806d6d505c SHA-256: 729fe292ce70f57ea4740fcbeedc7154678516450bcb89d2af5f0745c2c7c73c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector infrastructure, indicating an attempt to deliver a payload. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious URL suggests a phishing or malware distribution attempt.

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=windows+xp+professional+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802566_domennuye__sluzhbuy__active_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802680_corel__photo__paint_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802636_programma__dlya__usilenie_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052341.bin
fe755517884ffc7919b044fdc79774fe31aa26fc8338ffed1e011ca29d090241		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52341 9816 bytes
font_01_sfnt_off00053e3a.bin
3e37760437646b0f7b246506f558c5e6d3241863b8a052dd664459b4565cef72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E3A 16244 bytes

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