Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 197ff18c407c279e…

MALICIOUS

Office (OLE)

148.3 KB Created: 2020-10-15 16:33:00 Authoring application: Microsoft Office Word
MD5: ef6b9b0f521142c46f3d6bbc983fcc5b SHA-1: 7345f56f5d0796ff1157ee36688a03ac359ddef2 SHA-256: 197ff18c407c279e436240984c946009e24dc90b17cb986b9bf9554278a8a699
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 sample contains VBA macros, including a Document_Open auto-execution macro, which is a common Emotet infection vector. The macro uses CreateObject and obfuscated p-code, indicating an attempt to download and execute a secondary payload. The ClamAV detection explicitly names this as an Emotet downloader.

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
73784b5943cf314d0c94351f697d020542e983828c792237442b7715b42f981c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 12871 bytes

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