Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 01b23b3d610f9308…

MALICIOUS

Office (OLE) / .DOCX

201.7 KB Created: 2020-12-22 06:39:00 Authoring application: Microsoft Office Word
MD5: 19ae76fe84c966727cf2558cf5d8574d SHA-1: a98d8138e9574d3c1e14b46a6bf54cc60c70288c SHA-256: 01b23b3d610f9308bbf2c4e27581457a719ef6a98e8eb217241da2059b6df644
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample is a Word document containing VBA macros, specifically a Document_Open macro that executes when the document is opened. The ClamAV detection and heuristic firings strongly indicate this is an Emotet downloader. The macro's purpose is to execute code, likely to download and run a secondary payload, which is a common Emotet delivery technique. The document body, though heavily obfuscated, appears to contain a lure to enable content.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
  • 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
87b72d633bd79d3d21c1246dbcc11e62ebdefc06e96dee650ec7c8e181386692
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16335 bytes