Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 cd974e32b8edf3a1…

MALICIOUS

Office (OLE)

30.5 KB Created: 2010-02-23 20:22:00 Authoring application: Microsoft Word 10.1
MD5: ef6ddb855f0b61eed8b6e72d8162a9e6 SHA-1: 927ac0f20063892469283ca79125d87fef5ccf41 SHA-256: cd974e32b8edf3a1d0945d5e95f8e4b3fc0c22e6da08d480a77270c0b3839350
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is an OLE document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The ClamAV detection as 'Doc.Trojan.Thus-8' further indicates malicious intent. No specific IOCs were extracted, but the presence of the Document_Open macro strongly suggests an attempt to execute malicious code upon opening the document.

Heuristics 4

  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
44aff278df889053b76c656b49cad59a005e476cf5a97c6b15fc094b52fce002		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2371 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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