Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae6ea645ef4a4004…

MALICIOUS

PDF

347.2 KB Created: 2015-08-22 09:14:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: af3914da4ef6a52060c1e14d3638c26d SHA-1: 3416c8ae52eb30bcc806548aded0ba7dc72f69b1 SHA-256: ae6ea645ef4a4004a1590da965504a405092c017a5d5421dbb8d8040d7165a2b
90 Risk Score

Malware Insights

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

The PDF file was flagged by a malicious redirector link heuristic, indicating it points to a known malicious domain. An ML classifier also strongly indicated maliciousness. 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 heavily obfuscated.

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=%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D0%B0+%D0%BF%D0%B5%D1%80%D0%B5%D0%B2%D0%BE%D0%B4%D0%B0+%D0%BC%D0%B5%D1%82%D0%B8%D0%B7%D0%BE%D0%B2+%D0%B8%D0%B7+%D0%BA%D0%B3+%D0%B2+%D1%88%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674501_skachat_anti_moskito.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674535_klyuch_k_igre_7_chudes_sokrovischa_semi.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674578_kalendarno_tematicheskoe_planirovanie_po_basketbolu_dyussh.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052680.bin
a0edf160074dcd4628881cb66abdca6b2302a4d709efc474b3ca6f509009e454		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52680 9136 bytes
font_01_sfnt_off000540a4.bin
e914625b4113ef79c077c2af564861b6b0593c5d8a47ffc7ae81ae254864d697		 pdf-font-stream PDF embedded font (sfnt) at offset 0x540A4 13904 bytes

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