Malicious PDF — malware analysis report

Static analysis result for SHA-256 92d830033f8f1ffe…

MALICIOUS

PDF

349.5 KB Created: 2015-08-24 00:16:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 16ae368e5bee06b6333243a410af4000 SHA-1: 546ec44dc1074e7fa089f7834cb8de8e3d913930 SHA-256: 92d830033f8f1ffe100f439f7eb90ae490ac39116fa3fb1ba6ecd57355e5af68
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector at http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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%82%D0%B0%D0%B9%D0%BD%D1%8B+%D0%BC%D1%83%D0%B4%D1%80%D0%BE%D0%B3%D0%BE+%D1%80%D1%8B%D0%B1%D0%BE%D0%BB%D0%BE%D0%B2%D0%B0+1957+%D0%B3+%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&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693131_1s__upravlenie__stroitelnoy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693368_skachat__gta__san_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694258_navoproksin_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052ea3.bin
20c83ad43da0f7dd6ca62d974c6c7b1c131ee4d2820a189b82c0383ef691d86e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52EA3 8908 bytes
font_01_sfnt_off00054896.bin
123bab9e3c317523e1611613169a4c7e81cce31b7755b35c1780c91d8701120f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54896 14256 bytes

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