Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 011da9ce80da4e79…

MALICIOUS

Office (OLE) / .DOCX

171.8 KB Created: 2020-10-02 08:05:00 Authoring application: Microsoft Office Word
MD5: 2a3eb6b8140ffbd053a6366e337e9239 SHA-1: 971e443deaec798e20591f4c503b9c903851ae2f SHA-256: 011da9ce80da4e79b555be49f03043613903d26b3928af2e32e16a8efdf5f4e8
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.EmotetRed02224-9938637-0', indicating a downloader functionality. The presence of a Document_Open macro and CreateObject calls within the VBA code strongly suggests that the macro is designed to execute automatically when the document is opened. This macro likely attempts to download and execute a secondary payload, a common tactic for Emotet. The obfuscated nature of the VBA script prevents a more detailed analysis of its specific actions.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
7051a023ff8c92545e9437031d326fa9393a821a4be28f0566a57a8f3610dd93		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10600 bytes

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