Malicious PDF — malware analysis report

Static analysis result for SHA-256 55ed04f3d55d0084…

MALICIOUS

PDF

360.3 KB Created: 2015-08-22 08:54:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0c4ed09db7ab340a8b790db0fc088daf SHA-1: 6475e4375f0d21a321849ba75a075baeaafb2b5d SHA-256: 55ed04f3d55d0084e018839b3517d9bf6fc8de3a46b5bcbb8ec379144484ff77
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL points to botcraftman.ru, which is flagged as malicious. This suggests the document is designed to trick users into visiting a harmful site, likely for further exploitation or credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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=igo+primo+2015+%D0%B4%D0%BB%D1%8F+windows+ce+60+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674467_disciples_3_pererozhdenie_seriynuyy_nomer_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674478_dzhon_grin_bumazhnuye_goroda_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674516_nyensi_diskografiya_skachat_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000557c5.bin
e4837c849fc8ad35522f2ebfe1f7f4e5555c93030356d38d54d660bd462e00f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x557C5 9800 bytes
font_01_sfnt_off00057334.bin
f3d7fe4982e39407e34c225fdb59e12a7a8558b921e52640c9557e3bda5d28f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57334 14868 bytes

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