Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 691b2fc6acbee6cf…

MALICIOUS

Office (OLE) / .DOCX

162.1 KB Created: 2020-10-16 18:44:00 Authoring application: Microsoft Office Word
MD5: 4f21adbc7510cd7532b3da7e9b099715 SHA-1: e19893e8a49a45f8e0b1ef98ec843294dc8bacfb SHA-256: 691b2fc6acbee6cf5fb93b6afad38eb2f61c4a211cb17cb3c617c2bdebd48f61
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 sample contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The macro uses CreateObject, a common technique for downloading and executing further stages. The ClamAV detection explicitly names Emotet, and the overall behavior aligns with Emotet's typical infection chain.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9778591-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9778591-0
  • 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
fcaa38ed96b1b218739bafc5403c2803ab83f37a0565afb297027068f0a0ee86		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15517 bytes

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