Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6b860b1c9d7e92d8…

MALICIOUS

Office (OLE) / .DOCX

125.8 KB Created: 2020-09-30 20:57:00 Authoring application: Microsoft Office Word
MD5: a5ae7518633a986006ec7473e7e9fb34 SHA-1: e475e506760b5dec16ee2ec61d5a6eaf8c7ba937 SHA-256: 6b860b1c9d7e92d8ac4e346503ce13d6ddf993cd471d17ca26ad437fde1b2809
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample was detected as Emotet by ClamAV, and it contains VBA macros that are automatically executed upon opening the document. The macro uses CreateObject and appears to be designed to download and execute a second-stage payload, a common Emotet behavior. The obfuscated nature of the script prevents a more detailed analysis of the exact download URL or persistence mechanism.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769866-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769866-1
  • 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
7cb9b8e5dcd6093fc36997f1ddba9977c3343a23efe112843f21e09b69e64d3a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10245 bytes

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