Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb9e3914706263d2…

MALICIOUS

PDF

357.5 KB Created: 2015-08-19 14:15:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a926e896f3130a6fe0cd0fcc539738aa SHA-1: 8da6926ef5e4ed34bd9346a05a60c64238fb6039 SHA-256: cb9e3914706263d2040370be228cde94bf4685d1d7f5f51d5aed3172bb0be54d
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 as malicious and contains a link to a known malicious redirector infrastructure. The embedded URL is likely the primary mechanism for delivering a malicious payload or directing the user to a phishing page. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BA%D0%BB%D1%8E%D1%87+%D0%B4%D0%BB%D1%8F+section+8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496723_pl_sql_developer_samouchitel.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626630_windows_7_home_basic_oa_cis_and_ge_64bit_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626512_serial_mech_2_sezon_skachat_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000543fe.bin
a9c437e6a6a311a045d73ca15083747dd59c9509dad6a7e92b55b65d8496b62f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x543FE 9980 bytes
font_01_sfnt_off00056082.bin
14584506f9ef066b555b2455122fe60b2faf41dfab935d511f65ffe2fb3a4aa9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56082 18336 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.