Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 e65b0b124b97f0e7…

MALICIOUS

Office (OLE) / .DOCX

162.8 KB Created: 2020-10-01 15:57:00 Authoring application: Microsoft Office Word
MD5: 42ae4940ec0e8a92ebc8a269e441e3c0 SHA-1: 63139abf9364048d3b36d0d4447e9d4de8aed591 SHA-256: e65b0b124b97f0e70a3fe0a7f527aa66f43366c831e9eb4f470c89c647b4cc2d
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample was detected as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9770197-0', strongly indicating the Emotet family. High-severity heuristics confirm the presence of VBA macros, specifically a 'Document_Open' auto-exec macro that uses 'CreateObject'. This suggests the macro is designed to run malicious code automatically when the document is opened, likely to download and execute a second-stage payload. The obfuscated document body text does not provide clear user-facing content but the technical indicators are conclusive.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9770197-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770197-0
  • 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.
  • 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
34626713db5720b3147c8823fb8dfd0fe34a12fce4df5a0aa65f24e3eab9d078		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10368 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 53 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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