Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 042a11254d196cd5…

MALICIOUS

Office (OLE) / .DOCX

129.4 KB Created: 2020-10-14 13:53:00 Authoring application: Microsoft Office Word
MD5: 2c8e99285746373480659d0926c4464c SHA-1: 8b2880758fe989c8fd6cca6cc1ce154543eb8d12 SHA-256: 042a11254d196cd5688b51341107b998586853651740094208b22a08c45f0f17
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro uses CreateObject to likely download and execute a second-stage payload. ClamAV also specifically detected this as Doc.Downloader.Emotet-9778040-0.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778040-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778040-0
  • 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
a085f52da3766ff03b3361ab273cac0c99aef403d2275ac551d698dcc8f8bb33		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 9635 bytes

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