Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6c4a7652f59aa03c…

MALICIOUS

Office (OLE) / .DOCX

154.7 KB Created: 2020-12-30 18:32:00 Authoring application: Microsoft Office Word
MD5: a0872437052dcdb2967a8dc574a0c603 SHA-1: 4847f5c3814147ef6f31409f7bbf1ff2d67c38df SHA-256: 6c4a7652f59aa03c67961983f167f86eb3a64ba568f0c4629c5adf18c82e2ce8
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro uses CreateObject to interact with the file system, attempting to create and write to specific file paths. This behavior suggests the macro is designed to download and execute a secondary payload.

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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