Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 cee793b01c4025cb…

MALICIOUS

Office (OLE)

101.0 KB Created: 2010-04-01 10:29:00 Authoring application: Microsoft Word 11.0
MD5: 59570b7fc43ce153437d05b9d8f67ebf SHA-1: 3a1dfea22a5506a2344ae6075af653f1d7acadc1 SHA-256: cee793b01c4025cbe9f29ce1fbfbd9a704c46ed3598d6f8aa51fe330cd829466
180 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature 'Doc.Trojan.Thus-8'. Static analysis detected VBA macros, specifically a 'Document_Open' macro, which is a common technique for executing malicious code upon opening the document. The presence of these macros suggests the document is designed to download and execute a secondary payload.

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
1a56668f34cf321ac0d3ce005b3740d1d618a4070cc820b10a01bd1c862827fe		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2372 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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