Malicious PDF — malware analysis report

Static analysis result for SHA-256 5992d8068d560f1c…

MALICIOUS

PDF

388.3 KB Created: 2015-08-28 11:55:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f5f952f7b4758c4820c649653852708d SHA-1: 701632f25468b28730024859dd7a3d48d8b05773 SHA-256: 5992d8068d560f1c4646b8da22b64a2d6e1374e1df8785ed7772e048dc1b81f6
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 critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/...' is the primary indicator of malicious intent. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of the content's specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9923

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%B8%D1%82%D0%BE%D0%B3%D0%BE%D0%B2%D0%B0%D1%8F+%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%B0+%D0%BF%D0%BE+%D0%B8%D0%BD%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+11+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%83%D0%B3%D1%80%D0%B8%D0%BD%D0%BE%D0%B2%D0%B8%D1%87&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802359_panorama__romanov__o_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802621_uralskie__pelmeni__torrent_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802685_spravochnik_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005ccb1.bin
a6323e080daff81f4f23c00c62f64015e80f65b35e46bea5a05a689a754a8e4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCB1 8144 bytes
font_01_sfnt_off0005e451.bin
8f08d25efdce0796e2c97603ad3502a5945abdc70764d54e33c4ce74f98617fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E451 14204 bytes

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