Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 6971dff36f60a7b5…

MALICIOUS

Office (OLE)

43.0 KB Created: 2008-05-15 15:41:00 Authoring application: Microsoft Word 11.3.5
MD5: 6f9f322777399e96eb757f846e468872 SHA-1: cbb9a34d58baf7cf55ef8906ad76c721f1706b42 SHA-256: 6971dff36f60a7b5024f736e701d5ad6f893b83faa7bdc00709fa770f300aab1
180 Risk Score

Malware Insights

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

The sample is a malicious Office document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The ClamAV detection 'Doc.Trojan.Walker-6' further confirms its malicious nature. The VBA script appears to be obfuscated and attempts to decrypt and execute further code, likely a secondary payload, though the exact download URL or execution method is not directly discernible from the provided script excerpt.

Heuristics 4

  • ClamAV: Doc.Trojan.Walker-6 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Walker-6
  • 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
3f26bd043c08c6880160fc894bb07c83c76a62dd08fc82305d44c5d49e96d32a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3158 bytes
Detection
ClamAV: Doc.Trojan.Walker-6
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.