Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 03f101d95dcb3540…

MALICIOUS

Office (OLE)

64.0 KB Created: 2009-08-31 14:50:00 Authoring application: Microsoft Word 11.0
MD5: db542b262974836ec3909b5d0fa16bc8 SHA-1: 1e4532dc692a48b260eadba74e7da8d51bab1ea4 SHA-256: 03f101d95dcb354086eff4c88119a6a0437b66a5dc19c1f8b0245a3c38eaffa7
180 Risk Score

Malware Insights

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

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening a document. The macro code appears to be designed to modify document properties and potentially display messages to the user, although the full functionality is truncated. The presence of the 'Doc.Trojan.Marker-40' ClamAV detection further supports its malicious nature.

Heuristics 4

  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
1af8fe9d6d207df24d7e3c46cd908e9277e9f236f57900f892fcf69496f39cb9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4237 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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