Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 604f8eff1b37f7ad…

MALICIOUS

Office (OLE) / .DOCX

145.9 KB Created: 2020-09-30 13:54:00 Authoring application: Microsoft Office Word
MD5: f53e7f4d7c4b74fdccc656371686c750 SHA-1: a71a0811343a7b3eada7f85177295a5db91ee87f SHA-256: 604f8eff1b37f7adc61f206db05c2cbe44b2ae7930bf3ae8b1acfcebc6f54435
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as Emotet by ClamAV. It contains a VBA macro that executes upon opening the document, leveraging CreateObject to likely download and execute a second-stage payload. The obfuscated nature of the VBA code and the presence of the Document_Open auto-execution macro are characteristic of Emotet's infection chain.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769801-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769801-1
  • 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
b0a96d5f70fa37f74dd6926b04c01f24a02f2a82bef41b3183b9207cf3a20fca
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10253 bytes