Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 170a9758c76a32bd…

MALICIOUS

Office (OLE) / .DOCX

141.0 KB Created: 2020-10-26 15:23:00 Authoring application: Microsoft Office Word
MD5: e760e829f08283e505895ef3031508d5 SHA-1: 3fecda92b88dad47b7006177237c71d4f99c67bb SHA-256: 170a9758c76a32bd4e24cee76623adf33c333d7d26762d04cc35e5f358ebbae5
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macros are heavily obfuscated, but the presence of CreateObject and the ClamAV detection strongly suggest a downloader functionality. The obfuscated VBA code likely attempts to download and execute a second-stage payload, potentially using PowerShell.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
  • 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
ba1af4dba1aa75f927c350af06a94edad859236070021b34b079fb1b956a0718		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16121 bytes

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