Malicious PDF — malware analysis report

Static analysis result for SHA-256 34d47d0106f06452…

MALICIOUS

PDF

354.5 KB Created: 2015-08-23 20:57:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 31680293a28fce23e4aafd807f235fcc SHA-1: 4d6c0ce76f176a4111c4cf56762520fe48a98ac9 SHA-256: 34d47d0106f06452d32620b499c5ede568ec2ee631a15c64a93ed636ff827b23
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating an attempt to deliver a malicious payload or lead the user to a phishing site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was unreadable, so the attack pattern is inferred from the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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=windows+vista+home+premium+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81+%D0%BE%D1%84%D0%B8%D1%86%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D0%BE%D0%B3%D0%BE+%D1%81%D0%B0%D0%B9%D1%82%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690054_skachat__tv__pleer_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690089_alen__de__botton_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690040_obrazec__dopolnitelnogo__soglasheniya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053e30.bin
50844409685e0c76beb3915e935afc65c1a2f901a2adb14aec0d4168e4035bd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E30 10912 bytes
font_01_sfnt_off00055c2d.bin
f0d8117782e2296e8cfd6bbb67710a0f2b629a047b78d0f3af95d9173cdd564c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55C2D 14964 bytes

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