Malicious PDF — malware analysis report

Static analysis result for SHA-256 269f247160d43d37…

MALICIOUS

PDF

356.3 KB Created: 2015-08-22 09:01:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9cf7cc39b0124d6753331cc724e377a6 SHA-1: 9943d28d2266b5aacf1c07c31f2cfecb67371996 SHA-256: 269f247160d43d374cae463600b3875b474289715a8925f665dae87792e50d40
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to a known malicious redirector. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download page. No scripts were extracted, and the document body was truncated and unreadable, limiting further analysis.

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=%D0%BA%D0%B0%D0%BA+%D0%B7%D0%B0%D0%BD%D0%B8%D0%BC%D0%B0%D1%82%D1%8C%D1%81%D1%8F+%D1%81%D0%B5%D0%BA%D1%81%D0%BE%D0%BC+%D0%B2+%D0%B3%D1%82%D0%B0+5&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674478_dzhon_grin_bumazhnuye_goroda_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674499_maykrosoft_ofis_2007_skachat_besplatno_bez_klyucha.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674593_skachat_serial_molodezhka_2_sezon_vse_serii_cherez_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054a1e.bin
4721e9f9846de3b82595a18c8ea476dada291911997dc1ff9c16369b0df3cbb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54A1E 9404 bytes
font_01_sfnt_off00056591.bin
bc75a5c01eb8dd2b7a76a3d628cc7ab57b66f34e50a8c9eba2ce65e9520a26e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56591 13780 bytes

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