Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 12648728174c80a6…

MALICIOUS

Office (OLE) / .DOCX

154.9 KB Created: 2020-12-30 18:32:00 Authoring application: Microsoft Office Word
MD5: a81adacdbfb2cb3a9785d0bc41e5aad8 SHA-1: e7cfa94219385db37433ab00dce02a4d9a31028a SHA-256: 12648728174c80a68b9992c8759df7e021f27fef6bbee5bed8af71b18a7fadd5
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 executes upon opening the document, as indicated by the `Document_Open` heuristic. This macro utilizes `CreateObject` to interact with the file system, attempting to create and write to files in specific directories. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests an Emotet family infection, which commonly uses such methods to download and execute further malicious payloads. The embedded URLs, though benign, are part of the document's structure and do not indicate the payload delivery mechanism.

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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