Malicious PDF — malware analysis report

Static analysis result for SHA-256 750d882345f705fa…

MALICIOUS

PDF

349.4 KB Created: 2015-08-21 09:15:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2194ce62813f71952907813e0761b055 SHA-1: 9be812b29848c98e71f42a7367daf8b87539dde5 SHA-256: 750d882345f705fab227df67c309d704ffda67f125317c84e4b9557b76ea5976
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL http://botcraftman.ru/ is likely used to redirect users to a malicious site for phishing or malware delivery. No scripts were extracted, but the presence of a malicious link strongly suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%9F%D0%B8%D1%81%D1%8C%D0%BC%D0%BE+%D1%80%D0%B5%D0%BA%D0%BE%D0%BC%D0%B5%D0%BD%D0%B4%D0%B0%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D0%B5+%D1%83%D1%87%D0%B8%D1%82%D0%B5%D0%BB%D1%8E+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654689_skachat_igru_metro_2034_cherez_torrent_besplatno_na_russkom.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_off000532b9.bin
97e0b70369a629f18d40e893503ae5d555774cfdaec364577ada2adf4de64086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x532B9 9092 bytes
font_01_sfnt_off00054cb8.bin
d292851988a5625042a46753729f97eddceb7b63b3054525d0b7b894a6b4e293		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54CB8 12908 bytes

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