Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 57374a1ff11ced7a…

MALICIOUS

Office (OLE) / .DOCX

167.3 KB Created: 2020-09-24 20:34:00 Authoring application: Microsoft Office Word
MD5: 0c80e05fb224d7860aae90ac496e2c12 SHA-1: 7cd791b43e4c002509401d5e8bc9f5e6216342ac SHA-256: 57374a1ff11ced7ada0485939fac0097fed707df6f0d3f248ed63c199ebd0fdb
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution via Document_Open and CreateObject calls, strongly indicate malicious intent. The presence of VBA macros, specifically a Document_Open macro that executes a PowerShell command, suggests the document is a downloader. The ClamAV signature 'Doc.Downloader.Emotet-9765780-0' directly attributes this sample to the Emotet family. The document body appears to be heavily obfuscated or corrupted, but the presence of VBA auto-execution with execution tokens is sufficient to infer the attack pattern.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765780-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765780-0
  • 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
20065c1f06a22de094d8fc279802a5adedc919206be7ae0d9cd9ee9d315ea30b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25868 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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