Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc28028f1a058278…

MALICIOUS

PDF

347.5 KB Created: 2015-08-19 13:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: cf3285f535e8726c743e612650e75f4e SHA-1: 44b4ea592bc107aa0a6a878d547ce8e510b51a0b SHA-256: bc28028f1a05827852ff21c11e2ed50e1e80d8a2f4a6155f89893b89162d8d33
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a malicious redirector link that points to 'botcraftman.ru'. This link is disguised with keywords suggesting a download for 'mx player' on Windows 7, likely to lure users into clicking. The ML classifier also flagged this PDF with high confidence, indicating malicious intent.

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=mx+player+%D0%B4%D0%BB%D1%8F+windows+7+%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//4626/4626582_sladkov_medveddarmoed_chitat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626562_sims_4_skachat_na_android_besplatno_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626602_powersuite_2015_kod_aktivacii_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000522cb.bin
2f975ada5ddbe39f05ad0142bbd4149da1cc61ed9f856dbe8523dfe52e9cc6bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x522CB 10104 bytes
font_01_sfnt_off00053e6c.bin
c60ef80ed55d2009b7a572aa74c044321a938c556abe09a6c5bfb446de86aa7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E6C 16260 bytes

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