Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 13c25bb5b4e70dbb…

MALICIOUS

Office (OLE) / .DOCX

130.6 KB Created: 2020-10-14 12:13:00 Authoring application: Microsoft Office Word
MD5: 5aa7efc60742b883ea4c68216026b92c SHA-1: 7b6aa559e5edc1e683c4795bb646b415e23a2902 SHA-256: 13c25bb5b4e70dbbec90e1195bfe0e1b60b9c6ef0ebad49cceb11f9fe23d9f15
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 common characteristic of Emotet. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9778018-0'. The VBA script likely downloads and executes a second-stage payload, a typical behavior for this family.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778018-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778018-0
  • 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
9ff2f6164d63cd97fef8963d2b7a6ca348ed28032df5d8d3d018a1f3d500bd9b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 9476 bytes

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