Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9dd4f09b4a7fb6b…

MALICIOUS

PDF

187.1 KB Created: 2015-08-06 12:17:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 027858541a144ff45a7578e8837f8d03 SHA-1: 999b0e8b88dd6a7b96d2c4a85fe73f51dbf0e4ab SHA-256: c9dd4f09b4a7fb6b2e38c0051ba802c8ec7d8c9a51a67c19cbae20c30010d185
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector, http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure.

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%BC%D1%83%D0%B6%D1%87%D0%B8%D0%BD%D0%B0+%D1%81+%D0%B3%D0%B0%D1%80%D0%B0%D0%BD%D1%82%D0%B8%D0%B5%D0%B9+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4309/4309941_forma_po_knd_1152017_za_2013_god_skachat_blank_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4310/4310231_skachat_vkontakte_dlya_windows_mobile.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4309/4309489_otchet_ob_izmenenii_kapitala_2012_obrazec_zapolneniya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024806.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24806 3556 bytes
font_01_sfnt_off00025589.bin
5744707e22358e37ce9aea9c162825c51384a07c91023f7c931513b4f64a7d85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25589 14544 bytes
font_02_sfnt_off0002833b.bin
fbe4af72ea4b6832e02f3a94d39805fe74296d1f62d5d4f3c350b4dd983b7d89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2833B 14468 bytes
font_03_sfnt_off0002ade9.bin
0fbc567d99a66c85f11469f652f57851f6303aac32f6b16448df2cad44108f9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADE9 7108 bytes
font_04_sfnt_off0002c293.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C293 6084 bytes
font_05_sfnt_off0002d228.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D228 3752 bytes

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