Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 0464daec5d2e1953…

MALICIOUS

Office (OLE)

3.36 MB Created: 2010-05-17 03:30:00 Authoring application: Microsoft Word 11.5.6
MD5: 1ce0623986fdeb9581f4e9a86f653b5a SHA-1: e440c1ed327d4d8f91f55a0464026a375a3e8a68 SHA-256: 0464daec5d2e195345cb4503526f201355af05c3ec3d463d9161007aa377d3ed
182 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1547.001 Registry Run Keys / Startup Folder

The file contains VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon document opening. The macro attempts to copy itself to the Normal template and other open documents, suggesting an effort to achieve persistence and spread. The ClamAV detection 'Doc.Trojan.Thus-8' further confirms its malicious nature. The specific persistence mechanism is not fully detailed due to truncation, but the intent is clear.

Heuristics 5

  • 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
  • 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://www.apple.com/DTDs/PropertyList-1.0.dtd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
57feb7ea770faea2ced3a5997a70e50af861cc1d804ed3ce756a57d8d2886249		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2421 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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