Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 7895e4060ec53ade…

MALICIOUS

Office (OLE)

47.5 KB Created: 2008-03-02 18:29:00 Authoring application: Microsoft Word 10.1
MD5: 742e5acf5f2b9cdd88f924f57cf2c5b4 SHA-1: 489ee5d8cf81222ec70d61a4fdb03e0f78764a41 SHA-256: 7895e4060ec53adec61191b7fc6ef0e901090d9dfdf0edfad129c150fd87a958
182 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV and contains VBA macros, including a Document_Open macro. The macro code attempts to disable macro warnings and modify document properties, which is a common technique for malicious documents. While the primary macro logic appears to be a date-based message box, the overall structure and heuristic firings suggest a malicious intent, possibly to prepare the environment for further exploitation or to act as a downloader.

Heuristics 5

  • ClamAV: Doc.Trojan.Marker-40 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Marker-40
  • 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
9651624cb097012c67881e1ed190f108b816a96ca9bfc5f8ddebd053bec2a6f8		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4273 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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