Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6a37830158b6a8e6…

MALICIOUS

Office (OLE) / .DOCX

150.7 KB Created: 2020-10-01 07:06:00 Authoring application: Microsoft Office Word
MD5: f54d3cce5506648045e38a959769accb SHA-1: 394b8b3a91f40e7d7963661d350c28ab9a0bb3c6 SHA-256: 6a37830158b6a8e60f6bc41880d508e53db1b6f59b4e917a7d361667de807875
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-9770156-0, indicating it belongs to the Emotet family. Static analysis revealed the presence of VBA macros, specifically a Document_Open macro that utilizes CreateObject, a common technique for executing malicious code. This macro is likely responsible for downloading and executing a second-stage payload, a hallmark of Emotet's operation.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9770156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770156-0
  • 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
edcbc228f949e002f32423fcc2aae89e10357cf04ecc19d5df06e1df6cb28a25		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10406 bytes

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