Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5b534bf80108820c…

MALICIOUS

Office (OLE) / .DOCX

158.7 KB Created: 2020-09-23 09:30:00 Authoring application: Microsoft Office Word
MD5: 360df4241cb970bd6114c0292c17c1af SHA-1: d6aad50948cc09444338b2a9b4bc95d3ad111c82 SHA-256: 5b534bf80108820c4b2ce654b225ca8cf8fc10176fb2d3b51b3fcdb0fc5c6200
242 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The heuristics indicate the use of CreateObject and GetObject, suggesting dynamic execution of code. The ClamAV detection explicitly names this as an Emotet downloader. The VBA script, though obfuscated, likely attempts to download and execute a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765530-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765530-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
f2279a4d422668b89c293cd032386976cc753a5ff4104c672bc17e53928a662a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20002 bytes

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