Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ef1d0083ae493ed…

MALICIOUS

PDF

362.9 KB Created: 2015-08-26 10:16:25 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b4dff49d380de672bece5a275db9538c SHA-1: 4a0a451c736b0855664ff01d865a812153d2a9db SHA-256: 7ef1d0083ae493ed0d9a0473c35fc33bd870d20b8982f1490c5e3a81b697905e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is identified as a malicious redirector. This suggests the document is designed to lure users to a compromised site, likely for further exploitation or credential harvesting.

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%98%D0%B3%D1%80%D0%B0+%D0%B3%D0%BE%D0%BD%D0%BA%D0%B8+%D0%B8%D0%B3%D1%80%D0%B0%D1%82%D1%8C+%D1%81+%D1%80%D1%83%D0%BB%D0%B5%D0%BC+%D0%B8+%D0%BF%D0%B5%D0%B4%D0%B0%D0%BB%D1%8F%D0%BC%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752500_voruy__v_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751528_obrazec__prikaza__ob_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752082_android_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056b59.bin
0727bc8183235e65cf91df2851415d10a879e627cf6cfb413360163d39045018		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56B59 8004 bytes
font_01_sfnt_off000582ab.bin
3a0590e8a5ef243d6b09ce4f7f0751a53a36bf02c2c6c0353604d1350c1018fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x582AB 12904 bytes

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