Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 08a4f15bc80d74ce…

MALICIOUS

Office (OLE) / .DOCX

148.3 KB Created: 2020-09-28 14:26:00 Authoring application: Microsoft Office Word
MD5: 6f48bcf5254bbe7c594331309ab0d649 SHA-1: 5072fd62e4ab9d5bf05c84d81374b7bec6fe3163 SHA-256: 08a4f15bc80d74cee9e99f6f8abffab083d993aeb388fdcc87491915139de532
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute obfuscated code. ClamAV detection confirms it as Emotet. The VBA script appears to be heavily obfuscated, but its structure suggests it is designed to download and execute a second-stage payload, a common Emotet behavior. The embedded URL, though benign, is noted.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9768663-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9768663-0
  • 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
52573b116f951816e527b23fd5cfdfc578caca117ddeb459f950d0953f709442		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6643 bytes

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