Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 7aee4270f1b92c25…

MALICIOUS

Office (OLE) / .DOC

147.9 KB Created: 2020-10-15 22:22:00 Authoring application: Microsoft Office Word
MD5: a624b8f7364d2ff500c1cb5db56860e7 SHA-1: f41a36806735aa7c86f8d6489840a0bef4a6e60a SHA-256: 7aee4270f1b92c25a4c10543b39d6588e94d7d02168c9b8df78be084b34def02
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 contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro uses CreateObject to likely download and execute a second-stage payload. ClamAV also identified the file as Doc.Downloader.Emotet-9778182-0, further supporting the Emotet family attribution.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778182-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778182-0
  • 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
6189db9948861e29e96fe9b9a8fe8805241b5cf8d84003c60bcf2d6c97469216		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 12683 bytes

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