Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 107013365a4b85d0…

MALICIOUS

Office (OLE) / .DOC

170.1 KB Created: 2020-09-16 21:06:00 Authoring application: Microsoft Office Word
MD5: 173bb1e1a59c5c97c601140ee9f8a9b9 SHA-1: 71c7fb2a47f7583e7cf8b7b503386cd1467f8b3b SHA-256: 107013365a4b85d03aa73c76a98301d0575066e5fd70618a975e56745b1e94b9
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 code. ClamAV identifies it as Emotet, a known downloader family. The VBA macro is heavily obfuscated but appears designed to download and execute a second-stage payload, a common Emotet behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9762248-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762248-0
  • 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
399b09c8d74ca70c14382a3c60b3f313640ed0e229ce8a9c8a5d7036140d7260		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19085 bytes

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