Malicious PDF — malware analysis report

Static analysis result for SHA-256 75ac012a23f1aa18…

MALICIOUS

PDF

187.2 KB Created: 2015-07-26 16:59:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1e738729f63910a79b29a9ff6c9800fe SHA-1: 9ca0152472c50bd3dfcdf1bfe78e3fb2e25d15e0 SHA-256: 75ac012a23f1aa181252deba76280dd8c45851753c39688e1828694f4a1bb1b0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded link, http://botcraftman.ru/..., likely serves as a lure to direct the user to a malicious site or initiate a malware download.

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%BF%D0%BE%D1%80%D1%82%D0%B0%D0%BB+%D1%8E%D1%80%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D0%BF%D0%B5%D1%80%D0%B8%D0%BE%D0%B4%D0%B0+5+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196507_pes_2015_skachat_na_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193822_programma_razvitiya_shkoluy_na_20142020_goduy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184491_maykrosoft_ofis_2010_skachat_besplatno_russkaya_versiya_torrent.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024815.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24815 3556 bytes
font_01_sfnt_off00025598.bin
77c944fab8f704d6ca97a3e60fe8aebd879919848f789d7554060258251109d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25598 15304 bytes
font_02_sfnt_off00028464.bin
0720cae6c3f13ed1d2c93eb7feaa98052105b588fd9c272cbe37102c0be6a02b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28464 14640 bytes
font_03_sfnt_off0002af94.bin
90f300306b3f15d63cb459cfd6ba1f63352286b867b63c0319443546029754e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF94 6740 bytes
font_04_sfnt_off0002c2ec.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2EC 6084 bytes
font_05_sfnt_off0002d281.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D281 3752 bytes

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