Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 66ff2845aa49250c…

MALICIOUS

Office (OLE) / .DOCX

175.6 KB Created: 2020-10-20 22:39:00 Authoring application: Microsoft Office Word
MD5: c59dbe0f94f9ccfaca65d3ff20dd48c0 SHA-1: 198d5edcf2339672e9a4caf541376dcb19f0a4e8 SHA-256: 66ff2845aa49250c6a643867ff07164647006a80a5fadaddb5d41c99fd6b9452
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9781039-0', indicating a known Emotet variant. The presence of a Document_Open macro and CreateObject calls strongly suggests that the VBA code is designed to execute malicious actions upon opening the document. The macro's obfuscated nature and its typical use in Emotet campaigns point towards it downloading and executing a secondary payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
  • 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
130bc91dd8b5ad391a87daabf287b6e2ceed1d78136a29ff57bedf25aa736586		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18991 bytes

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