Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 00811b4a43db0ac2…

MALICIOUS

Office (OLE) / .DOC

124.5 KB Created: 2020-09-30 20:57:00 Authoring application: Microsoft Office Word
MD5: 592598e3acd92c9970c73de6ec380e04 SHA-1: 1490e4c4aa7524dd0c99a2a3a48839669053c9e5 SHA-256: 00811b4a43db0ac2a88c49f0f4cbda45da02316ba871e9e1fca39f1217a92f46
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The file contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating malicious intent. ClamAV detection confirms this as Emotet. The VBA script appears to be obfuscated, but its structure suggests it attempts to download and execute a secondary payload from a constructed URL, which is a common Emotet tactic. The embedded URL 'http://schemas.openxmlformats.org/drawingml/2006/main' is benign and likely a red herring or part of the obfuscation.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769866-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769866-1
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
7cb9b8e5dcd6093fc36997f1ddba9977c3343a23efe112843f21e09b69e64d3a
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10245 bytes