Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2bc99a4b7ef225a…

MALICIOUS

PDF

352.4 KB Created: 2015-08-28 00:10:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e6dc285fac58b7effed282e64797de2c SHA-1: dd2a25108a3a8d7dca75493600dedcad51a8733f SHA-256: e2bc99a4b7ef225a90873a588115f6145bd7f8e682391e4015dfe474c546e07c
92 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 highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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%81%D1%82%D0%B0%D1%82%D1%8C+%D0%B0%D0%B4%D0%BC%D0%B8%D0%BD%D0%BE%D0%BC+%D0%BD%D0%B0+%D1%81%D0%B2%D0%BE%D0%B5%D0%BC+%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80%D0%B5+%D0%B2+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788325_obrazec__reklamnogo_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788170_molodaya__gvardiya__film_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788507_yuridicheskie__tekstuy__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053f15.bin
fb1c397cf217555aa81f767efd993bc1fa21d843b8b0a80e491a0c40e816fa30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53F15 8280 bytes
font_01_sfnt_off000555ce.bin
d76c6b5a801f0832dd00a252ede3e95c153d0c2786b7d7d60f01db9b5cd4770a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x555CE 13700 bytes

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