Malicious PDF — malware analysis report

Static analysis result for SHA-256 cccfeda899fff058…

MALICIOUS

PDF

359.0 KB Created: 2015-08-27 09:49:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e8236072686121f709603e0120e42171 SHA-1: c61cde0cf4b720e7a8de4df18915019cf5c037cc SHA-256: cccfeda899fff0584b35743c57c650ed9fe5ff560b0aa78157c1b7c14acb57a0
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a malicious redirector link and a machine learning classifier. The embedded URL points to botcraftman.ru, which is identified as malicious infrastructure. The presence of a malicious redirector indicates the document's primary purpose is to lure the user to a compromised or malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-9089055-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9089055-0
  • 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%BF%D0%BB%D1%8F%D1%81%D0%BE%D0%B2%D0%B0%D1%8F+%D0%BC%D1%83%D0%B7%D1%8B%D0%BA%D0%B0+%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://img1.liveinternet.ru/images/attach/c/7//4771/4771935_kratkoe__soderzhanie__rasputin_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771952_skachat__zhurnaluy__radio_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771989_demonstracionnuyy__variant__egye_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000554b5.bin
7bdb5b9b680bb507af7842f27be7ea67e580fba6c40eaee8fb56221eeb8c0a24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x554B5 9040 bytes
font_01_sfnt_off00056e86.bin
7e8541142123344938a2da00cddbe9590878e24a85b3a482dd622d729ee1b97a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56E86 14444 bytes

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