Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6da9962dbe01ce30…

MALICIOUS

Office (OLE) / .DOCX

167.5 KB Created: 2020-10-26 10:57:00 Authoring application: Microsoft Office Word
MD5: 6997a74950c88ff94bfdbbcd8d3a8aee SHA-1: e09f69b81cf0ee6e7568a058e37e6a32cca184b9 SHA-256: 6da9962dbe01ce3030f39f6b03578ce1952a166115cd43bca0a654924443de55
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with a specific detection name indicating it's a downloader. Heuristics confirm the presence of VBA macros, specifically a Document_Open macro that uses CreateObject, indicating execution of arbitrary code. The VBA script itself is heavily obfuscated but the Document_Open macro's execution of CreateObject strongly suggests it's designed to download and execute a secondary payload, consistent with Emotet's behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9783962-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9783962-0
  • 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
73da4e56546636c0246d24a128ee097e3f12e124f4b51048532455144fb1d70c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15915 bytes