Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 129969ec1fec7a8f…

MALICIOUS

Office (OLE) / .DOC

132.8 KB Created: 2020-09-30 18:26:00 Authoring application: Microsoft Office Word
MD5: faded20b3544391fe98ca69d5afa4f17 SHA-1: 4eed3a822fe94275921a4e32ece370b3fe2fabc4 SHA-256: 129969ec1fec7a8fa24d98d2ae3abc6f93362f214ea4784c2e3ef5995868f8da
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro utilizes CreateObject to execute code, indicative of a downloader. ClamAV detection further supports the Emotet family attribution. The obfuscated nature of the VBA code and the presence of a Document_Open macro suggest the primary purpose is to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769771-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769771-0
  • 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
e5aaf9f3439fc51732c94523035a3e61bc2d17c21b6cf92e4d7bbe4fa685ceb9
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10171 bytes