Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 120df89e1c9b355c…

MALICIOUS

Office (OLE) / .DOCX

205.5 KB Created: 2020-12-22 12:31:00 Authoring application: Microsoft Office Word
MD5: 7f062d7c5d5bb751a7d0a0edb6380f5b SHA-1: 3a52739bdfff648e28b740c773b9d2a31ded9989 SHA-256: 120df89e1c9b355c0c1bd2def6efe6269c63a894ac41ff29ef28bbaf610d13cb
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with a specific Emotet signature. Critical heuristics indicate the presence of a Document_Open macro that uses CreateObject, a common technique for executing malicious code. The VBA macro itself is obfuscated but the presence of the Document_open subroutine and the CreateObject heuristic strongly suggest it's designed to download and execute a second-stage payload.

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
b223e36ca03f3aef1de34ece9213428b8c399a8d27f7650232938837efe41a69
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16333 bytes