Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0ec750da300c9438…

MALICIOUS

Office (OLE) / .DOCX

201.1 KB Created: 2020-09-25 06:51:00 Authoring application: Microsoft Office Word
MD5: 9f837c627c3100034cf8d21e3254242e SHA-1: 1c3e9229ad9fd41f66a69d14a124464dae01cf8b SHA-256: 0ec750da300c9438bf6c4d55c0f4afa754c9db2f1e38eed1e82def35510ca4f4
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample is a Microsoft Office document containing obfuscated VBA macros, specifically a Document_Open macro that uses CreateObject, indicating malicious intent. ClamAV detection confirms it as 'Doc.Downloader.Emotet-9767804-1'. The VBA script is heavily obfuscated but the presence of Document_Open and CreateObject suggests it's designed to download and execute a secondary payload, a common Emotet tactic.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9767804-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9767804-1
  • 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
d802c65eb8f9df036cf46e9408744e30c5d95dae54b582b9f65ecb84ecb28fa8		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25261 bytes

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