Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd8e19fdf6663a3b…

MALICIOUS

PDF

382.3 KB Created: 2015-08-28 01:28:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ca49219c9ce91f859088afc12bc365e1 SHA-1: 04b5bc95f50e3fa3138826a9427e129308532ebe SHA-256: fd8e19fdf6663a3b422978022ca23505c33d25348ae7a4824a43359eeef777d9
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely used to direct users to a malicious website for phishing or malware delivery. No scripts were extracted, limiting further analysis of the execution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%B8%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5+%D1%84%D0%B5%D0%B9%D1%81%D0%B1%D1%83%D0%BA+%D0%B4%D0%BB%D1%8F+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788266_dzheyms__li__valentayn_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788541_yeroticheskiy__massazh_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788120_skachat__igruy__ohota_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b1e6.bin
cee4a58610c3c0ce38d3c579e2ea83cf7ad247a71d2b353758a585a673f9b98f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1E6 8548 bytes
font_01_sfnt_off0005cacf.bin
b5754c80508b4d1a9c72bdb8c62f92dd85cf6d056d8390af5b91d70b4d4230d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CACF 15004 bytes

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