Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 84c59d19b7824608…

MALICIOUS

Office (OLE) / .DOC

183.5 KB Created: 2020-10-27 09:55:00 Authoring application: Microsoft Office Word
MD5: c5d5aa355ed1cff3fb8d976750335c68 SHA-1: da02b116441ba89bebc454d801b227f49f01066d SHA-256: 84c59d19b7824608fa0a48330787ba8905d60b85587629bed3d15844b28ed446
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious Microsoft Word document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. ClamAV detection identifies it as 'Doc.Downloader.Emotet-9784225-0', strongly suggesting the Emotet family. The obfuscated VBA code likely downloads and executes a second-stage payload, a common Emotet behavior. The presence of 'PowerShell' in the obfuscated DOC BODY text and the heuristic firings indicate the use of Visual Basic for Application (VBA) to initiate execution, likely leading to PowerShell usage for payload delivery.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
d266e0e433b4f1ca206b8db182ee793bd3229a389f65ad6b52e9aace0436fd0a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15938 bytes

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