Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 73566ad2f33a0774…

MALICIOUS

Office (OLE) / .DOCX

155.6 KB Created: 2020-10-16 19:32:00 Authoring application: Microsoft Office Word
MD5: a0e8d99c0be089d3de682121776e06c7 SHA-1: 8684f2c1109dd951bf2c5ad3f3472d9a48db63a0 SHA-256: 73566ad2f33a0774f6971e9d5b1f2766a0f42b91fa5f86b193247ba5929190cc
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with a specific Emotet signature. High-severity heuristics indicate the presence of VBA macros, specifically a Document_Open auto-execution macro that utilizes CreateObject. This suggests the macro is designed to download and execute a second-stage payload. The VBA script itself is heavily obfuscated but the presence of CreateObject and the Emotet signature strongly point to this family and attack pattern.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9778628-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9778628-0
  • 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
d7b10db6ad3bff10dd176d31b83ada7ffa72a5d7b1b67bb513aee8ccfc4d5f3f
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15292 bytes