Malicious PDF — malware analysis report

Static analysis result for SHA-256 bff9073d2a1502d7…

MALICIOUS

PDF

362.6 KB Created: 2015-08-29 02:02:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9c675b8f667b1665328257235e0b3c47 SHA-1: e67c2f57fc5e1256d7471818ab8fe78134ec730a SHA-256: bff9073d2a1502d7e0aaaccac5933f3dccae1d27e566cc200b61c87acb4ae4b9
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document is designed to lure users to a harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%B0%D0%BD%D0%B0%D1%82%D0%BD%D0%B0%D1%8F+%D0%B4%D0%BE%D1%80%D0%BE%D0%B3%D0%B0+%D0%BD%D0%B8%D0%B6%D0%BD%D0%B8%D0%B9+%D0%BD%D0%BE%D0%B2%D0%B3%D0%BE%D1%80%D0%BE%D0%B4+%D0%B1%D0%BE%D1%80+%D1%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817819_telefonnuyy__spravochnik__novoy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818381_maynkraft__100_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818596_skachat__uchebnik__russkogo_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056659.bin
ef6273036bd9cb3629c7e5c9c6988466335724cf4a662dff030854e8aa73a847		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56659 8232 bytes
font_01_sfnt_off00057e2e.bin
d2ccca1ba9ae57460c10d96ee7a57e723a5b4d5e7a12cacb7131b8e693d20f1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57E2E 13836 bytes

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