Malicious PDF — malware analysis report

Static analysis result for SHA-256 94a7486500475350…

MALICIOUS

PDF

387.4 KB Created: 2015-08-21 09:21:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 55a3753f8c436716ffd4d03036017d84 SHA-1: 92c6a1c486440436848b3336f282f46ff3d32a3b SHA-256: 94a748650047535032774c8502a094e7c9c0d715567381cc7d300b3211cc6020
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it is a malicious redirector link. The embedded URL, http://botcraftman.ru/..., is confirmed as malicious. While no scripts were extracted, the presence of a malicious redirector strongly suggests the document's purpose is to lure the user to a harmful site. The file was generated by wkhtmltopdf, which can sometimes be abused for malicious purposes.

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%92%D0%B2%D0%BE%D0%B4%D0%BD%D1%8B%D0%B9+%D1%83%D1%80%D0%BE%D0%BA+%D0%BE%D0%B1%D1%89%D0%B5%D1%81%D1%82%D0%B2%D0%BE%D0%B7%D0%BD%D0%B0%D0%BD%D0%B8%D0%B5+5+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%B1%D0%BE%D0%B3%D0%BE%D0%BB%D1%8E%D0%B1%D0%BE%D0%B2+%D1%84%D0%B3%D0%BE%D1%81&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654707_fohisha_kizlar.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654734_notuy_dlya_detskogo_hora_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654684_kogda_budut_izvestnuy_rezultatuy_egye_po_himii_2015.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c6a1.bin
428a5557fec79fa1cab290d883c2ec2a6031a4d4c527750f9dad9657ad6fa1a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6A1 10104 bytes
font_01_sfnt_off0005e23f.bin
a272b7c3c2c951769ec12abb8ee1035cb3dc64f0d791cc5c2d78f743944fc174		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E23F 13736 bytes

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