Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 5a3c7d8535b1e541…

MALICIOUS

Office (OLE)

136.0 KB Created: 2020-10-15 10:28:00 Authoring application: Microsoft Office Word
MD5: e66f9021da45ba8c670d3bbbb535d2dd SHA-1: 7ebbb407ed8f6520fd89f53b1fa3b49b649fd4df SHA-256: 5a3c7d8535b1e541265a461bc2306cb416a184c9d24f45dc3c750fefa2f6a1a6
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, specifically a Document_Open macro that utilizes CreateObject. This is a common pattern for Emotet, which often uses macros to download and execute additional malicious payloads. The ClamAV detection further supports the Emotet family attribution.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778182-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778182-0
  • 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
61d5057f532c30cd6ac7bc258d49a0caf86ce433c8ada79ce978d7da665d558b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 11395 bytes

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