Malicious PDF — malware analysis report

Static analysis result for SHA-256 5398e2c80f2c52be…

MALICIOUS

PDF

356.9 KB Created: 2015-08-26 14:53:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 5fa2a4eb024070e795ee01f6615b5b1e SHA-1: 593be47d4d8704dc477c6cf9eecc1fd64ef5c3c9 SHA-256: 5398e2c80f2c52be3bcda30bd08b684af8ae07e93fc9b41ca9265aef53289883
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. ClamAV also detected the file as Pdf.Malware.Agent-9838394-0. The embedded URL is likely used to lure the user to a malicious site for further exploitation or credential harvesting.

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.Malware.Agent-9838394-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Malware.Agent-9838394-0
  • 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%9C%D0%B0%D1%80%D0%B8%D1%8F+%D1%81%D0%BA%D0%BE%D1%80%D0%BD%D0%B8%D1%86%D0%BA%D0%B0%D1%8F+%D0%B3%D0%BE%D0%BB%D0%B0%D1%8F&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4755/4755740_skachat__igru__lego_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752099_gia__2015__po_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4755/4755676_zadaniya__s4__po_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005556d.bin
d50c27ad27d5cad4c9c86635ffae465f357a9df7bfea3073ff62da8d422a768e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5556D 7468 bytes
font_01_sfnt_off00056b24.bin
ff5cf4203b354a47d8db3254837542de93a2b21d23192d0a3731dbc56311a06b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56B24 12644 bytes

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