Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 632f88366e620aea…

MALICIOUS

Office (OLE) / .DOCX

134.1 KB Created: 2020-09-28 07:04:00 Authoring application: Microsoft Office Word
MD5: 4c0c32172f4ec9608d2d2f6c6846884f SHA-1: b2e46692d5053bc94723c09a6e2d99f49e760534 SHA-256: 632f88366e620aea2c0933d4faf76bb6df0ab4b6d4c8b4ca5fb6d5b60e859ebc
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The ClamAV detection explicitly names this file as 'Doc.Downloader.Emotet-9768657-0'. The macro's functionality, while obfuscated, likely involves downloading and executing a second-stage payload, consistent with Emotet's behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9768657-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9768657-0
  • 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
e75df2f1d58eb5949c0678a2356db3178c4d0bfd05af2a59d3cebacf3557baf1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6244 bytes

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