Malicious PDF — malware analysis report

Static analysis result for SHA-256 e20b29ca25fd56ef…

MALICIOUS

PDF

354.0 KB Created: 2015-08-28 11:36:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f4d328a2e1ab5f48de63cbd5bd776e7c SHA-1: 9c6103669c490ad72858f82161d949af01ab79df SHA-256: e20b29ca25fd56ef456f1b97ad2f223a89d5a51271fa52ce5545e828db054eb8
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%87%D1%82%D0%BE+%D1%82%D0%B0%D0%BA%D0%BE%D0%B5+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%BF%D1%80%D0%BE%D0%B8%D0%B7%D0%B2%D0%BE%D0%B4%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE%D0%B3%D0%BE+%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8F&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802394_zune__dlya__htc_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802417_scenariy__agitbrigaduy__muy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802408_flash__player___.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005436e.bin
f63b5570b932155189c775a3c374fe96bf7a7748cda158c3354f6c7cf49a9bb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5436E 7592 bytes
font_01_sfnt_off00055992.bin
ec4726afaff9f32f77fd3aacc86ed4d5b9362f84e1d878ce9bf7cd809e8069d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55992 15724 bytes

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