Malicious PDF — malware analysis report

Static analysis result for SHA-256 a32b69bb108cf788…

MALICIOUS

PDF

375.3 KB Created: 2015-08-24 04:28:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ad6ad41a37066fa35431a50c9a3d6303 SHA-1: 0d784f432317dd09c84b365653f11e7978f53869 SHA-256: a32b69bb108cf788a847bc97c778abef9360eb17bff30979950f8ccdaab46a0a
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a malicious site, likely for phishing or to download further malware. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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%BD%D1%8D%D0%BD%D1%81%D0%B8+%D0%B4%D1%80%D1%8E+%D1%82%D0%B0%D0%B9%D0%BD%D0%B0+%D1%81%D1%82%D0%B0%D1%80%D0%B8%D0%BD%D0%BD%D1%8B%D1%85+%D1%87%D0%B0%D1%81%D0%BE%D0%B2+%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://img0.liveinternet.ru/images/attach/c/6//4694/4694321_korsaruy__3__taynuy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4697/4697107_svinka__peppa__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4698/4698301_tekst__pesni__ne_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059586.bin
40de3f311464f0273d0403fe7d08564fbd0316c9f38a29b9f3417343fc106af7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59586 9348 bytes
font_01_sfnt_off0005aedb.bin
0456aa810dd09f762018dbbae8ea172d8c37f99feba152823a39af0293a287ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AEDB 14704 bytes

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