Malicious PDF — malware analysis report

Static analysis result for SHA-256 2529280526cf3382…

MALICIOUS

PDF

351.4 KB Created: 2015-08-22 09:15:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b6a35c987d40401db559165a983aa168 SHA-1: 6341729e2381d458439d8805fa7871e7e3b8b4bc SHA-256: 2529280526cf3382daddd368da43af716d809ca7cd6aa7b2415181e4c01aa00e
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 infrastructure. The ML classifier also flagged this PDF with a high confidence score. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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=%D0%B7%D0%B2%D0%B5%D1%80%D1%8C+%D0%B4%D0%B2%D0%B4+2014+windows+7+64+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674735_nauchitsya_vesti_razgovor_v_lyuboy_situacii_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674619_skachat_dps_14_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674739_nikolay_noskov_skachat_vse_albomuy_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000534f1.bin
ddb56e0a4a2633afde82d8ad0799d01e89d97a7dfb3b7ae514fca6a1275c2d9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x534F1 9828 bytes
font_01_sfnt_off00055155.bin
69f61adf2ceda9c7916d009623efff9af967da5dd6a293b2b994eddace31c020		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55155 14144 bytes

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