Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 15f21498e046ce05…

MALICIOUS

Office (OLE)

148.0 KB Created: 2020-10-15 14:34:00 Authoring application: Microsoft Office Word
MD5: a5a08a50ca735866842daeacebbd7bec SHA-1: acd475b557fbfad388984e1808ded059066935e5 SHA-256: 15f21498e046ce0577fa5fc0922e7c4953c8df70e99a1c3929c3c1584fea4938
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample is a malicious Office document containing a VBA macro. The macro is triggered by the Document_Open event and uses CreateObject to execute code, which is a common technique for Emotet. The ClamAV detection explicitly names 'Doc.Downloader.Emotet-9778224-0', strongly indicating the Emotet family. The macro's obfuscated nature and use of CreateObject suggest it is designed to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778224-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778224-0
  • 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
b2c5689ca3757fa4157ea59f16365cb334e68487bb4f8496fb867967402af424		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 12861 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.