Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee599eb5d22eedf1…

MALICIOUS

PDF

366.3 KB Created: 2015-08-21 09:13:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ca9aa143c305449b634afe3fc360a97c SHA-1: 54b8a7b182d8ba08c3fbabd1b0f6a87485ce1d79 SHA-256: ee599eb5d22eedf17f8a9e3dc339537f438aa52de2576a07c927f6ea7002c1a8
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV, specifically identified as a dropper. A critical heuristic firing indicates the presence of a link to known malicious redirector infrastructure at http://botcraftman.ru/. This suggests the PDF's primary purpose is to redirect the user to a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0711

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8797870-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8797870-0
  • 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%BE%D0%B3%D0%B4%D0%B0+%D0%B1%D1%83%D0%B4%D1%83%D1%82+%D0%B8%D0%B7%D0%B2%D0%B5%D1%81%D1%82%D0%BD%D1%8B+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B+%D0%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D1%85%D0%B8%D0%BC%D0%B8%D0%B8+2015&charset=utf-8

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057594.bin
ceade8324dc092d9471c353db091e16c44e4357c5a2a8192cef2217ef41176b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57594 8532 bytes
font_01_sfnt_off00058eb0.bin
fae378de8033c07f6b8e48ae386f446164bc5176a84edc1eca4fb355a7643f39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58EB0 13304 bytes

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