Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 12b453d0ec73dadc…

MALICIOUS

Office (OLE) / .DOCX

151.0 KB Created: 2020-10-01 07:06:00 Authoring application: Microsoft Office Word
MD5: 512173606de68e3e5244cb97831f5066 SHA-1: 0ee09f4a462f158a78a2d331ed07366563dc5d8b SHA-256: 12b453d0ec73dadcc6afb7329b9337c0c571ad9151436892d9d57af1ff00a130
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1137.001 Office Application Startup: VBA T1203 Exploitation for Client Execution

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, a common technique for Emotet. ClamAV detection also confirms the Emotet family. The VBA script is heavily obfuscated but the presence of CreateObject and the Document_Open auto-execution strongly suggests it's designed to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9770156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770156-0
  • 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
edcbc228f949e002f32423fcc2aae89e10357cf04ecc19d5df06e1df6cb28a25		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10406 bytes

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