Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7dbe3e3f4d5e95b6…

MALICIOUS

Office (OLE) / .DOCX

156.1 KB Created: 2020-12-30 18:32:00 Authoring application: Microsoft Office Word
MD5: eb69427d4c88b7103d3557ec7ae9dd9f SHA-1: 0b62014e7cd8d58f3cf8e844bdcc07cdf09086dd SHA-256: 7dbe3e3f4d5e95b69111858fc5e96f73c1b7f8284276a1280486ab64139324a2
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1105 Ingress Tool Transfer

The sample contains VBA macros that are automatically executed upon opening the document via the Document_Open subroutine. The obfuscated VBA code utilizes CreateObject to interact with the file system, attempting to create and write to specific file paths. This behavior is characteristic of malware downloaders, and the ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests an Emotet family infection.

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
e8d3f7d8d02f0b30fe9a4f739a77064bdfd79f1fb249409f6cc7dd9e6c88bf62		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6622 bytes

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