Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 64e04bddf27b3d53…

MALICIOUS

Office (OLE) / .DOCX

209.8 KB Created: 2020-12-22 21:50:00 Authoring application: Microsoft Office Word
MD5: 6a129baf7b95f27a985be69e4bc724c9 SHA-1: 8232db92816feda1c5ec951bb359bfa090c04aaf SHA-256: 64e04bddf27b3d535ea895f4dc08267a98a4c401edadc68e3caf7f6f850c4f64
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 malicious Office document containing VBA macros, specifically a Document_Open macro that executes obfuscated code. This behavior is characteristic of Emotet, which often uses such macros to download and execute further stages. The ClamAV detection name further supports this attribution.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
b559ca2a4b6431779fe74d7481a6f916cab3c2b891432c5ee8c97f5a35ecea25		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15388 bytes

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