Malicious PDF — malware analysis report

Static analysis result for SHA-256 b75ab33baed3cc6d…

MALICIOUS

PDF

380.8 KB Created: 2015-08-21 09:14:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1b9a7e6c21037086443143e43af75f64 SHA-1: 9d363f1825ea1c6e5ec63c2ef648ecb55b3dee80 SHA-256: b75ab33baed3cc6dc68d78e6256a16e51cd61c2d6c11c4c32ac249e81447221d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector infrastructure at botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful website. No scripts were extracted from this sample, and the document body was heavily truncated and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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%A1%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D0%BE%D1%82%D1%87%D0%B5%D1%82%D0%BD%D0%BE%D0%B3%D0%BE+%D0%BA%D0%BE%D0%BD%D1%86%D0%B5%D1%80%D1%82%D0%B0+%D0%B2%D0%BE%D0%BA%D0%B0%D0%BB%D1%8C%D0%BD%D0%BE%D0%B3%D0%BE+%D0%BA%D0%BE%D0%BB%D0%BB%D0%B5%D0%BA%D1%82%D0%B8%D0%B2%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654677_skachat_gta_san_andreas_multipleer_03e_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654682_skachat_programmu_torrent_3x_speed.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a4ed.bin
ec3459078a44019149896b1fbab7203bdc4f5bd7f1afac0099848c6956e9058d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A4ED 9404 bytes
font_01_sfnt_off0005bf3e.bin
cd753b304ce598a18a484a40377c67a3283ce99f858d106e802e37d658155b63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF3E 17512 bytes

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