Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6647111dcc98f3a0…

MALICIOUS

Office (OLE) / .DOCX

155.1 KB Created: 2020-10-16 19:32:00 Authoring application: Microsoft Office Word
MD5: 3df4e3a9b070b3933a89b92a8a088c5a SHA-1: 085669ccdf54d29415f499ba574dfe88a18029b4 SHA-256: 6647111dcc98f3a01470eee7de5a3b93b579a08c585cd3553cbfbdf3d54db556
202 Risk Score

Malware Insights

Emotet · confidence 90%

MITRE ATT&CK
T1059.005 Visual Basic T1203 Exploitation for Client Execution

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject. This is a common pattern for Emotet to download and execute a secondary payload. The ClamAV detection also strongly suggests Emotet. The VBA code is heavily obfuscated, but the CreateObject call is a clear indicator of malicious intent.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9778628-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9778628-0
  • 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
d7b10db6ad3bff10dd176d31b83ada7ffa72a5d7b1b67bb513aee8ccfc4d5f3f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15292 bytes

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