Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3f80271effee3e9…

MALICIOUS

PDF

371.0 KB Created: 2015-08-26 19:04:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ba2d1f6fcde29a8bb41ff3d2d86d38dd SHA-1: 3bfc0ab38ae0870d174f82b2d9ea8132169fb4c1 SHA-256: b3f80271effee3e9fbcdb760b0e575e8f8087357772a320deff055c23c52ea07
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document was flagged by a machine learning classifier and contains a direct link to a known malicious redirector at botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful website. No scripts were extracted from this sample, and the document body was truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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=%D1%81%D0%B0%D0%BC%D0%BE%D1%83%D1%87%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D1%8B+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80%D0%B5+%D0%B4%D0%BB%D1%8F+%D0%BF%D0%B5%D0%BD%D1%81%D0%B8%D0%BE%D0%BD%D0%B5%D1%80%D0%BE%D0%B2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762694_instrukciyu__feron__model_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762675_prilozheniya__dlya__nokia_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762105_dogovor__na__pogruzorazgruzochnuye_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058534.bin
b98dcf9b88c83e5e2f0357ad9f1fb08bc1d166d663013070621dd2c8b9c2be9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58534 8260 bytes
font_01_sfnt_off00059d4a.bin
f834919a0b95a8d4a079285a39af9ef4879d83093f825d4ac86f315e631d74d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59D4A 14992 bytes

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