Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 fa8d48f06aa9f8ba…

MALICIOUS

Office (OLE)

50.5 KB Created: 2007-05-23 19:55:00 Authoring application: Microsoft Word 11.3
MD5: 4973893b04c54e4090eb2ee84de641a3 SHA-1: 27ba9057147414a13691b4be6e765289c77b40cb SHA-256: fa8d48f06aa9f8baf1f12d995b05d9e16ebcdc9647c80b33d251d3bee7d11c14
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The document body presents a plausible lure about website content preparation, aiming to trick the user into enabling macros. The presence of a Document_Open macro and the ClamAV detection strongly indicate malicious intent, likely to download and execute a secondary payload, though no specific script content was provided for detailed analysis.

Heuristics 4

  • ClamAV: Doc.Trojan.Thus-8 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Thus-8
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
d973a5383537dea0efdb7b40c4f6cad365053c5f72b2496466242ad8a4e911f7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2296 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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