Malicious PDF — malware analysis report

Static analysis result for SHA-256 f41877e24994c52c…

MALICIOUS

PDF

391.9 KB Created: 2015-08-27 02:06:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c4f965c6af87d2f3dc5461eb82b5163a SHA-1: 0433d66f84c36cf4bcc70f00307e9f3320a2b3a6 SHA-256: f41877e24994c52cf86c1ff63d95acbe17f4c16c5ecca23282328ea0423db4ea
90 Risk Score

Malware Insights

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

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 to direct users to a malicious website. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%B0%D1%82%D0%BB%D0%B0%D0%BD%D1%82%D0%B8%D0%B4%D0%B0+%D0%B7%D0%B0%D1%82%D0%B5%D1%80%D1%8F%D0%BD%D0%BD%D1%8B%D0%B9+%D0%BC%D0%B8%D1%80+%D1%81%D0%BC%D0%BE%D1%82%D1%80%D0%B5%D1%82%D1%8C+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B2+hd+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4770/4770767_svinka__peppi__smotret_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4770/4770708_programma__dlya__obnovleniya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4766/4766346_legion__protiv__imperii_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005dbd4.bin
2de5e28d397c80efbdaebcd96fc27c58cc4ac6bdb84f601b0b1d16205d510c3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBD4 8464 bytes
font_01_sfnt_off0005f443.bin
97de2edfd5c11961e8dbe44c42021396c00909abafff1ed977ede11ed2778eb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F443 13740 bytes

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