Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2fb209739e3b848…

MALICIOUS

PDF

362.4 KB Created: 2015-08-28 00:10:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 094440e78f6fa9dbd61cf588e07e5fb1 SHA-1: ebf5cf5dba5f8c189ed24fb526b58b3ea27edbcc SHA-256: e2fb209739e3b8480343aa3758b1390ee55230dfebe3420bd4107d4c8aab6d78
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 document body is heavily obfuscated and unreadable, preventing a more detailed analysis of its specific content or intent. The presence of the malicious URL suggests the document is designed to lure the user to a harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%BA%D0%BE%D0%BC%D0%BC%D0%B5%D1%80%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D0%BF%D1%80%D0%B5%D0%B4%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8%D1%8F+%D1%81%D1%82%D1%80%D0%BE%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D0%B9+%D0%BA%D0%BE%D0%BC%D0%BF%D0%B0%D0%BD%D0%B8%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788189_bolshaya__kniga__muyshc_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788303_russkaya__ozvuchka__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788215_aviasimulyator_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005634f.bin
5cd1c0996a9bb49c09c32214878ba6748efbae5c68a276df1a53b6e02f77b600		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5634F 8628 bytes
font_01_sfnt_off00057c7c.bin
e6e8294a5ec00fbfc60696bc2b1a5ae343fe6b23553a50614883a9f1f2f6c240		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57C7C 14920 bytes

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