Malicious PDF — malware analysis report

Static analysis result for SHA-256 29435ac7451464fb…

MALICIOUS

PDF

187.6 KB Created: 2015-07-23 23:55:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a2c7b3dc3e6f3c0f8fd73e9413fd74e4 SHA-1: 66913e11b918ef092bd248a22cfbc483cc2a7074 SHA-256: 29435ac7451464fb278ba94a90d7304ffc4077d6031e8f563b49c34e60e16257
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 known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent. No scripts were extracted, and the document body was truncated, limiting further analysis of the delivery mechanism.

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=%D0%A0%D0%B0%D0%B1%D0%BE%D1%87%D0%B0%D1%8F+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%BF%D0%BE+%D0%B8%D0%B7%D0%BE+%D0%BD%D0%B5%D0%BC%D0%B5%D0%BD%D1%81%D0%BA%D0%B8%D0%B9+5-7+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%84%D0%B3%D0%BE%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185360_skachat_igru_blokada_3d_fps_online.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184703_portfolio_uchenika_nachalnoy_shkoluy_malchika_shablonuy_tachki.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183195_lada_kalina_shema_yelektrooborudovaniya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002481b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2481B 3556 bytes
font_01_sfnt_off0002559e.bin
4cd313fb5a1cbc0b554e9185c68874d6322ec59d812db13953d1d82328cc3c10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2559E 14796 bytes
font_02_sfnt_off00028432.bin
bb3dff39796feef52e5eeefffec3a59a85a0518d237e76c93ae06f6c138e981e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28432 14688 bytes
font_03_sfnt_off0002af97.bin
a89dafe6eb6ddc630907588ca34c57369aa547313cf6b173b1cf0ced9778af9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF97 7204 bytes
font_04_sfnt_off0002c494.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C494 6084 bytes
font_05_sfnt_off0002d429.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D429 3752 bytes

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