Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6999769977b28dd3…

MALICIOUS

Office (OLE) / .DOCX

195.1 KB Created: 2020-09-16 06:48:00 Authoring application: Microsoft Office Word
MD5: 8db82cff9ff4491750cc13d75ea00f43 SHA-1: 374ee7e9dc3df60cdd061bfc5a032c1283226041 SHA-256: 6999769977b28dd35bb2f5e22944e54b7fee9c13aa8908d10eea12612e3c741f
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common characteristic of Emotet. The script attempts to use CreateObject to download and execute a second-stage payload, as indicated by the heuristic firings and the presence of obfuscated VBA code. The ClamAV detection further supports the Emotet family attribution.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762408-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762408-0
  • 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
df4fb732414a2f9f369567b5a31d1b266832fcbd15a8b5f56fa79c20074a71e7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25460 bytes

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