Malicious PDF — malware analysis report

Static analysis result for SHA-256 394d7658481f8039…

MALICIOUS

PDF

184.8 KB Created: 2015-07-24 09:11:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ed3e36967f00948b265e94c0ad0d13ee SHA-1: ca5bc459055afed144121625e06c7a6bfaa152d7 SHA-256: 394d7658481f8039d85b1667994a87dc678b9b899729d2d954ebe1db0c5fb631
92 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a link to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL http://botcraftman.ru/?lip&keyword=1+%D0%B4%D1%84+%D0%B1%D0%BB%D0%B0%D0%BD%D0%BA+2015+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8 is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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=1+%D0%B4%D1%84+%D0%B1%D0%BB%D0%B0%D0%BD%D0%BA+2015+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189636_russkie_moduy_dlya_farming_simulyator_2013.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187023_farming_simulator_2014_skachat_torrent_russkaya_versiya_dlya_pc.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184748_spravochnik_lesoustroitelya_n_n_gusev_zip.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023faa.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FAA 3556 bytes
font_01_sfnt_off00024d2d.bin
837d4206649ed09905aab41d3233259c5fd20d2032c6e7ef4a2f995c02b027dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D2D 14972 bytes
font_02_sfnt_off00027b78.bin
b4e7262d3c265b9c03968570e6910e5029d70de81bf1212fa54e1ea61326de8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B78 14640 bytes
font_03_sfnt_off0002a6af.bin
f4ab11e8cdc705b95e717c653e4d2b3ba95fb22467ac0dbf10557f3b0f290114		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6AF 6576 bytes
font_04_sfnt_off0002b989.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B989 6084 bytes
font_05_sfnt_off0002c91e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C91E 3752 bytes

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