Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 0397c7ec50117bd5…

MALICIOUS

Office (OLE) / .DOC

173.3 KB Created: 2020-09-23 04:35:00 Authoring application: Microsoft Office Word
MD5: cae42d00cc3ce1b58ce369b87bfcc0d5 SHA-1: c941170de252c8fbed53150941a3367d25cba7f3 SHA-256: 0397c7ec50117bd5e7069535c5dc1b83306d2f339f14e876000e27c388020f45
242 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Word document with VBA macros, specifically triggering a Document_Open macro. Heuristics indicate the use of CreateObject and GetObject, common for downloading and executing payloads. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9765458-0', strongly suggesting the Emotet family. The VBA script, though obfuscated, appears to be designed to execute malicious code.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765458-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765458-0
  • 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
4b5417dbd98c86686e3f5f9c6557dfc9adc0cd727a7e10c1fb3ee22c8d8e412b
vba-macro oletools.olevba.extract_macros (decoded VBA source) 20383 bytes