Malicious PDF — malware analysis report

Static analysis result for SHA-256 8925ae7abe585aa9…

MALICIOUS

PDF

368.4 KB Created: 2015-08-24 00:40:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 6dba350509e12de323680728acd7121b SHA-1: 507d5682044365af6b26775ad7d34ed78e65bc3c SHA-256: 8925ae7abe585aa9027549670317c49b568e49b089b5792c1f514c6ee2a4c832
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is associated with malicious activity and is presented as a download link for 'Farming Simulator 2013', a common lure. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the malicious link is sufficient evidence of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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=farming+simulator+2013+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F+2009&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694589_skachat__chit__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694679_starcraft__2__heart_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694550_gonsales__celuyte__menya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005790c.bin
5de800fbbfc9fc4296e965be8cf7a3f6257668730820b39af37fb9990ccb5d2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5790C 10132 bytes
font_01_sfnt_off000595e4.bin
568b745fe97713fe195ec55a7fe82dd7e9d6bc05cf88d4f44c7e356e8b01f4ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x595E4 14284 bytes

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