Malicious PDF — malware analysis report

Static analysis result for SHA-256 808d0454581853e2…

MALICIOUS

PDF

361.7 KB Created: 2015-08-28 11:57:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9f85e9a0668125526fc2b19f22e5cd3e SHA-1: c0065f2c0c59784b191aa1e40bd61bf6582113ec SHA-256: 808d0454581853e2657e1303263f6231fa3479a50b2df0ceb087ab48f7d58bec
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 link to a known malicious redirector. This indicates the document is likely a lure designed to redirect users to a malicious website for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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%BE%D0%B1%D0%BE%D0%B8+%D0%B4%D0%BB%D1%8F+%D1%80%D0%B0%D0%B1%D0%BE%D1%87%D0%B5%D0%B3%D0%BE+%D1%81%D1%82%D0%BE%D0%BB%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+%D1%8D%D1%80%D0%BE%D1%82%D0%B8%D0%BA%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802773_adele__someone__like_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802661_skachat__moduy__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802650_stilos__kniga_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056415.bin
69b409cc1ea524272f24f845ca5a5cb93ce569393ef675563dfad406af174c00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56415 7572 bytes
font_01_sfnt_off00057a1f.bin
2075f24cd9a74f1bda3f1fcd6886ca04e9950a982f1232dd4af245d84aad38e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57A1F 14480 bytes

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