Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e6a7e8f2e4f1cc…

MALICIOUS

PDF

357.9 KB Created: 2015-08-21 09:15:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c5e3307e75354bc8cd0684f4331b43fa SHA-1: b96a1314dc9005e74b13116d5f4c8effe7d72b02 SHA-256: c9e6a7e8f2e4f1cc05d20ab93dfca91d7b7e37158869c88838f90f34f17aaa77
90 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is designed to lure users into downloading a Windows 7 activator. The ML classifier also flagged this PDF with a high confidence score. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B0%D1%82%D0%BE%D1%80+%D0%B4%D0%BB%D1%8F+windows+7+all&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654681_chit_na_bessmertie_v_payday_2.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654698_wetransfer_fayloobmennik_na_russkom_yazuyke.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654678_skachat_multfilm_holodnoe_serdce_2013_cherez_torrent_besplatno.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005510b.bin
ef24387ae8bb22b13825a7ec8dc1ba45dc8eb5a8ee2afc022d26bfd0838226fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5510B 8680 bytes
font_01_sfnt_off0005694e.bin
30722820e4c9d1f274201401ffcea34f20e1dd2c5a92738b265f11304b894352		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5694E 15504 bytes

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