Malicious PDF — malware analysis report

Static analysis result for SHA-256 db65e4080e599344…

MALICIOUS

PDF

364.4 KB Created: 2015-08-22 11:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ece7b98d03449a914234b17543d009ef SHA-1: 7b004629c4bbf46493b61a29ceeb384005a112b5 SHA-256: db65e4080e5993440d444c9bd3b6e6c14f0c8e051a85507607d4ab94abd46442
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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=prestigio+geovision+4200+%D0%BF%D1%80%D0%BE%D1%88%D0%B8%D0%B2%D0%BA%D0%B0+%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://img1.liveinternet.ru/images/attach/c/6//4675/4675882_maks_korzh_diskografiya_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4675/4675949_skachat_drayvera_dlya_noutbuka_samsung_np300v5a_dlya_windows_7.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674975_otchet_po_proizvodstvennoy_praktike_v_rospotrebnadzor.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000566ba.bin
fa4a6c9d0450c99de25eb1befdf8c0afab6fbe42840c1762c2ae8fa4a604749e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x566BA 9576 bytes
font_01_sfnt_off00058255.bin
feadc5ee6f9ce519a272ead8c0f6a415993a8ce01b8a5c3b43a91fb68991f354		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58255 15512 bytes

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