Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 887fa6a834121789…

MALICIOUS

Office (OLE) / .DOCX

157.7 KB Created: 2020-09-23 09:30:00 Authoring application: Microsoft Office Word
MD5: 18e9253ee56da5193feb666e932769d5 SHA-1: c08b5f461937179a728179363e5dc9b4cece9dc9 SHA-256: 887fa6a834121789518a2119d59559b212de2d235e454fd67d1e000e8ee7df1d
242 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9765530-0', indicating it is likely an Emotet downloader. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject calls, which are commonly used to execute malicious code. The VBA script appears to be obfuscated but its structure suggests it is designed to download and execute a secondary payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765530-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765530-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
f2279a4d422668b89c293cd032386976cc753a5ff4104c672bc17e53928a662a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20002 bytes

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