Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 d763e3f76bf25b9e…

MALICIOUS

Office (OLE) / .DOCX

202.4 KB Created: 2020-09-25 06:51:00 Authoring application: Microsoft Office Word
MD5: e25e55f0c148329b13c27801de567a06 SHA-1: c74c7c19277e64245a13decf193adf535d447b92 SHA-256: d763e3f76bf25b9e26cbc9cf13b9df3c8af129ee5287e96868659ab6508ffa89
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject to execute code. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9767804-1'. The embedded document body text, though heavily obfuscated, appears to be attempting to construct a PowerShell command. This indicates the macro is designed to download and execute a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9767804-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9767804-1
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
d802c65eb8f9df036cf46e9408744e30c5d95dae54b582b9f65ecb84ecb28fa8		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25261 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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