Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 1218dae61d7d72bd…

MALICIOUS

Office (OLE) / .DOCX

159.0 KB Created: 2020-10-26 20:02:00 Authoring application: Microsoft Office Word
MD5: 5a106df8c26a3714ad58eb6e35179b3a SHA-1: 09c0ad80a11e842748fbae57086dda2a62a34d30 SHA-256: 1218dae61d7d72bd4387dbe5dba12a8ca87f4fe817fd909dcd856d0384717a72
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains a VBA macro that is automatically executed upon opening the document, as indicated by the 'Document_Open' and 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristics. The macro utilizes 'CreateObject' to likely execute obfuscated PowerShell code. ClamAV detection as 'Doc.Downloader.Emotet-9784039-0' strongly suggests the Emotet family, which commonly uses this technique to download and execute further malicious payloads.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
  • 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
25a58c4e712d1085864e82f7ab775526ec6adf7a6a7c9b5168c373897e87509d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15931 bytes

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