Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 02584dda37c39942…

MALICIOUS

Office (OLE)

159.5 KB Created: 2020-09-15 21:35:00 Authoring application: Microsoft Office Word
MD5: 23e63aa56af9c4a04ae326480354e1ed SHA-1: af5493daf9320732d0cc3f4dd636bdc3cc0c0ae5 SHA-256: 02584dda37c3994209fc1ca37938f0f8dfd514098ff040411d4b892333d7e8c7
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating malicious intent. ClamAV detection explicitly identifies it as Emotet. The VBA script appears to be obfuscated but likely aims to download and execute a second-stage payload, a common Emotet tactic. The embedded URL is benign, but the presence of macros and the ClamAV signature strongly suggest malicious activity.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762290-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762290-0
  • 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
48aeeefcb5ab39bdc7a9844f7217739e7dc8c9cb3f8a901965d3ff17ec851125		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25311 bytes

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