Malicious PDF — malware analysis report

Static analysis result for SHA-256 9529a3eb362a9e52…

MALICIOUS

PDF

362.8 KB Created: 2015-08-22 09:03:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9f85951f256b30397dc959647cc50f09 SHA-1: cd1163fae98287bac0edcc1cbe26168e8c1b77cc SHA-256: 9529a3eb362a9e52fca29376272fee43f9559d00a09ea3785b9cd04439d39f7c
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, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The document body is heavily obfuscated and unreadable, suggesting it is not intended for user consumption but rather to host the malicious link. The primary attack pattern is likely phishing or malware distribution via the embedded malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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=1%D1%81+%D1%82%D0%BE%D1%80%D0%B3%D0%BE%D0%B2%D0%BB%D1%8F+%D0%B8+%D1%81%D0%BA%D0%BB%D0%B0%D0%B4+77+%D0%B4%D0%BB%D1%8F+%D1%83%D0%BA%D1%80%D0%B0%D0%B8%D0%BD%D1%8B+%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//4674/4674541_klyuch_k_igre_soldatiki_chitat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674560_klyuchi_dlya_aktivacii_vindovs_7.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674543_vosstanie_kiborgov_2013_skachat_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005688b.bin
f79e471211ec28f9b57e01d2774550ee3dd03032b62b7023b9e7d5bb5a280310		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5688B 8184 bytes
font_01_sfnt_off0005805c.bin
373b6c3d63ca699eda3aa0355a89ab356917953b16bd0943a4cf87963ac3c335		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5805C 13460 bytes

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