Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cb26035e0ea8939…

MALICIOUS

PDF

359.1 KB Created: 2015-08-21 09:13:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 28560d9de44e63961ed17140f766d81a SHA-1: b56712016bc04f7aac24f30703644a4b53da0c1f SHA-256: 5cb26035e0ea893993c83b5f445b7c6bd25d6c5b5073a1f76b45cd8004f6ada9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery.

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=%D0%BA%D0%B0%D0%BC%D0%B5%D0%B4%D0%B8+%D0%B2%D1%83%D0%BC%D0%B5%D0%BD+2015+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654678_skachat_multfilm_holodnoe_serdce_2013_cherez_torrent_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654675_dnevniki_vampira_10_kniga_ohotniki_obretaya_sudbu_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055198.bin
6303c32f09c1e7fa9dd2f071f744d800bd7093d46652d006800de67dfd4b7105		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55198 10752 bytes
font_01_sfnt_off00056f71.bin
e9a50bfd67f61e08a5f10e94443b2ddd7352f5151bcddf11408e6128c40c9f99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56F71 14412 bytes

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