Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7c159d17e809a78b…

MALICIOUS

Office (OLE) / .DOCX

175.4 KB Created: 2020-10-30 13:48:00 Authoring application: Microsoft Office Word
MD5: 6b26164de04f2ebd070325993088ce41 SHA-1: 1cbd2c22f56e1c353a4ce19556ff3689286f13cf SHA-256: 7c159d17e809a78bad3e024cda533ebab493cc8519755e2946af59e11eac9ebe
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. The ClamAV detection and heuristic firings strongly indicate Emotet. The VBA macro is heavily obfuscated but appears to be designed to download and execute a secondary payload, a common Emotet tactic. The embedded URL, while benign, is noted.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9785300-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9785300-0
  • 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
6ef446d7bbe59b96b37194ceef7dfc21ebc83ff1edf01838a31098c50a7e733f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17445 bytes

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