Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5f236c9fbf1c7da4…

MALICIOUS

Office (OLE) / .DOCX

172.5 KB Created: 2020-10-27 21:28:00 Authoring application: Microsoft Office Word
MD5: 36221babbf7e75f55356a32643bbd989 SHA-1: 27ec3281f1d68a9cc3aa30fbda47d5b2c2a2d63c SHA-256: 5f236c9fbf1c7da408bdfdfba5ae26469d4a12f9b06ae78b685dd2ff34e40bc0
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample is a malicious Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. The ClamAV detection name 'Doc.Malware.Emotet-9784450-1' strongly suggests the Emotet family. The VBA code appears to be obfuscated but is designed to download and execute a second-stage payload, likely PowerShell, based on typical Emotet behavior.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
8e0ab8816d43bd5ad9c1c0011689607d8d62edfed4931a09dce2c4955c56dadb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16529 bytes

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