Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 16a0fc95c6217d45…

MALICIOUS

Office (OLE) / .DOCX

162.5 KB Created: 2020-12-29 20:50:00 Authoring application: Microsoft Office Word
MD5: 3095d3149f7f6742831ef28f984ec5a9 SHA-1: 1a1856db6adda6a20d663c159ec7c60cc9fcd5f4 SHA-256: 16a0fc95c6217d4542b0a02200d26987e08d41c709ba9c36b9830993b2b4c6c4
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests the Emotet family. The VBA code is heavily obfuscated but the presence of CreateObject and the auto-execution macro indicate it's designed to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
e5f9549007a41fec3f244ce297cfb2983cfeb314035104f84c750e8267247398
vba-macro oletools.olevba.extract_macros (decoded VBA source) 8311 bytes