Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 63f39b5d4c7df1d4…

MALICIOUS

Office (OLE) / .DOCX

224.8 KB Created: 2020-09-21 04:09:00 Authoring application: Microsoft Office Word
MD5: e200780f7779438fbf1ed5ef8aab0cd8 SHA-1: fba9864756af084ca5ce4033bf3dad6fbaefddec SHA-256: 63f39b5d4c7df1d496184b11a68d27be3dcc0e058d457d8d68fdfc3025c46a6e
242 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter

The sample was detected as 'Doc.Dropper.EmotetIOS-9402070-0' by ClamAV, indicating a known Emotet dropper. The presence of a 'Document_open' VBA macro that uses 'CreateObject' and 'GetObject' strongly suggests the execution of malicious code. This macro is designed to download and execute a second-stage payload, a common characteristic of Emotet.

Heuristics 7

  • ClamAV: Doc.Dropper.EmotetIOS-9402070-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetIOS-9402070-0
  • 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
5616715bcc9f37a507701fce0794395b42220e4bc894eb29a7aefa2b3d5ff263		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19230 bytes

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