Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 0833b398961a4a08…

MALICIOUS

Office (OLE)

134.6 KB Created: 2020-10-15 10:28:00 Authoring application: Microsoft Office Word
MD5: ea6adb839f1429dc08a683904758c9f4 SHA-1: 358f564e49e907f3ffee2df27cbf80cf5d50bd12 SHA-256: 0833b398961a4a08775b0a0c30afd06a9d85ac6fc178b89cb4a10eaefbbb78a4
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample is a Microsoft Office document containing a VBA macro. The macro is configured to execute automatically via the Document_Open event and uses CreateObject to initiate its malicious activity. ClamAV detection identifies it as 'Doc.Downloader.Emotet-9778182-0', strongly suggesting it's part of the Emotet botnet, which commonly uses this technique to download and execute further payloads.

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
61d5057f532c30cd6ac7bc258d49a0caf86ce433c8ada79ce978d7da665d558b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 11395 bytes

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