Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 0acbd96443e33ed3…

MALICIOUS

Office (OLE)

132.8 KB Created: 2020-10-14 19:03:00 Authoring application: Microsoft Office Word
MD5: 3c3fe8780c1e8af77ef2514d4381f397 SHA-1: a2ec279ab4572fbbbd8296adc75d87146a54c5ad SHA-256: 0acbd96443e33ed3c7bb5928e381f4440eb99308be50ab1a869a7bc118e57076
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059 Command and Scripting Interpreter T1204.002 Malicious File

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The script utilizes CreateObject to execute arbitrary code, and the ClamAV detection explicitly identifies it as Emotet. The obfuscated nature of the VBA code suggests an attempt to evade detection and execute a malicious payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778091-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778091-0
  • 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
35ba581a7d07c242723817cd679240b29046cc2a7f4485862374591738596dda		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 9454 bytes

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