Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 3b8a68c53fbb0684…

MALICIOUS

Office (OLE)

192.5 KB Created: 2009-08-21 22:21:00 Authoring application: Microsoft Word 11.2
MD5: 0d922a11fddd159de71eaa3173e82158 SHA-1: ae2d89099e681d0f1ab7f5635a4f5c1fa051d419 SHA-256: 3b8a68c53fbb0684c14aa26d93bbf6745d2a6e56b01016dba11a8b615db1f715
240 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell

The file is identified as malicious by ClamAV with multiple critical heuristic firings. Notably, VBA macros were detected and a Shell() function call was present within the VBA code. An extracted artifact named 'macros.bas' was also flagged as suspicious. The presence of these elements strongly suggests the document is designed to execute arbitrary commands, likely to download and run a secondary payload.

Heuristics 6

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Trojan.Marker-31 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Marker-31
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
2637b14e6c3dd6aec28c8da77bfb2d97d284e2840689f78203791dbc6b70f487		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6941 bytes
Detection
ClamAV: Doc.Trojan.Marker-3
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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