Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6332f6b0886bc926…

MALICIOUS

Office (OLE) / .DOCX

172.5 KB Created: 2020-09-30 10:55:00 Authoring application: Microsoft Office Word
MD5: 84f121454e5668bf4be4a48166341625 SHA-1: efbc82b07b0bec5ae5c7b16b193f321ed517f1b4 SHA-256: 6332f6b0886bc926911339247b72278894fc0667a705e120fa356efd3691962b
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 a VBA macro that is automatically executed upon opening (Document_Open). The macro utilizes CreateObject and obfuscated code, consistent with Emotet's typical behavior of downloading and executing further malicious content. The ClamAV detection name further supports the Emotet family 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
e574dc9e5be70b9e64389cc5809b4b9a70fc86bbb2ebeadb9aa3663111f6add5		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10540 bytes

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