Malicious PDF — malware analysis report

Static analysis result for SHA-256 baf99ba783082a53…

MALICIOUS

PDF

353.5 KB Created: 2015-08-23 20:53:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a9906db29a0e45ad362dd0eaca7617de SHA-1: 316c3fe464dd9136732e9c5c92a2b1afebd57e4c SHA-256: baf99ba783082a539d2a9e54e9fa490dc11e61355f8401e43a95b011491d4243
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was heavily truncated and unreadable, preventing further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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=Dubstep+piano+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690034_dnevnik__motuylka__reychel_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690035_80211n__wlan__adapter_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053973.bin
b28e43a9c26ac85934b965dc680949dc67a06d4c2cbcc7606ea6d54e6e53e4ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53973 9560 bytes
font_01_sfnt_off0005538e.bin
3a1379d79fdb4be175bb0e95816e8faefec9e809fd25e61f9c6984c68e0e9562		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5538E 16756 bytes

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