Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0510e527a29327b…

MALICIOUS

PDF

183.8 KB Created: 2015-07-25 18:56:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a7ee40f90ff2858e24450ca308ab0389 SHA-1: 8a28f29b84b1235e4402c0caaf284f807e074b47 SHA-256: c0510e527a29327b8750b20e20a2a484e1c22110d3f63e033648f6a5c549b9cd
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 containing a link to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of compromise, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

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%94%D0%B5%D0%B2%D1%83%D1%88%D0%BA%D0%B8+%D0%BF%D0%B8%D1%81%D0%B0%D1%8E%D1%82+%D0%B2+%D1%82%D1%83%D0%B0%D0%BB%D0%B5%D1%82%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186261_skachat_bespalevnuyy_aim_kfg_dlya_ks_16.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205215_slavyanoariyskie_veduy_audiokniga_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205403_tanki_onlayn_skachat_chit_na_kristalluy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f41.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F41 3556 bytes
font_01_sfnt_off00024cc4.bin
13d2b2d611688d9bc49fd5930517a9a49d1a5579b3f3e035a019404138b90b68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CC4 14112 bytes
font_02_sfnt_off000278ed.bin
6c804e475f52a6b16891c88f33cd8502b24a505cd7a761e1ef2ee2043b3626fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x278ED 14520 bytes
font_03_sfnt_off0002a3bb.bin
4eb4f42eb154ce1934adba259e63aba6d57e13ad67c563db95cccb77d7456f24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A3BB 6280 bytes
font_04_sfnt_off0002b56d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B56D 6084 bytes
font_05_sfnt_off0002c502.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C502 3752 bytes

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