Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 e94720b4121c2f2d…

MALICIOUS

Office (OLE) / .DOC

150.6 KB Created: 2019-05-02 16:38:00 Authoring application: Microsoft Office Word
MD5: 94f1dee1c809f989898bb6a814e85997 SHA-1: feb1d96255197b02109da74d8f56ad47e9b48367 SHA-256: e94720b4121c2f2d41e0ee3d754100229d76b7f7085c5700cc059ac806f0a59e
260 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.001 PowerShell T1218 Signed Binary Proxy Execution T1059.005 Visual Basic

The sample is identified as malicious by ClamAV with the signature Doc.Dropper.Emotet-6960272-0. Critical heuristics indicate the presence of VBA macros that automatically execute using GetObject and WMI to launch a process. This strongly suggests a dropper functionality, characteristic of the Emotet family, designed to download and execute further stages of malware.

Heuristics 7

  • VBA WMI Win32_Process launcher critical OLE_VBA_WMI_PROCESS_CREATE
    VBA macro builds or references a WMI moniker for Win32_Process and invokes .Create to start a command. This is a high-confidence macro execution chain that often hides the WMI class name through string concatenation or helper functions.
  • ClamAV: Doc.Dropper.Emotet-6960272-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Emotet-6960272-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
0e722013454a708a1913990c9eac5126be2be015fc605cdc012b47aff57225cf		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 31223 bytes

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