Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eed7aed417c65f2…

MALICIOUS

PDF

346.0 KB Created: 2015-08-26 15:22:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1073481a20506aadf0784a4d3656719d SHA-1: 459ed65aefdc7332ea8254e98533a2d53c0e4bf8 SHA-256: 1eed7aed417c65f2092d75d252b731bd4d1a176aede7a781e646c5af294d5f46
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also flagged the PDF with high confidence. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was unreadable.

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=windows+root+system32+haldll+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4756/4756638_skachat__shemu__nokia_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4754/4754972_igra__madagaskar__2_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752841_skachat__akapelluy__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051d6d.bin
54623c3cab0d878fdc30e00455eda9ce4b1f52ed1be08dc1bcfb23268e2c7c37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51D6D 10228 bytes
font_01_sfnt_off00053a20.bin
231313ffdc3ceb3ff63eb60d5964b2bbec5f32d93539c0e250946be600f6245c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53A20 15236 bytes

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