Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 e12f25d5aacd3c07…

MALICIOUS

Office (OLE) / .DOC

156.1 KB Created: 2019-05-01 17:22:00 Authoring application: Microsoft Office Word
MD5: 541c09ba08459a39932a18a10e636ff7 SHA-1: 834eadfd70be7c7b324c45c65830152e51bb165b SHA-256: e12f25d5aacd3c073171d6f5613fcca942c7cf9cec4cedbed74acb9dbee513de
260 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.001 PowerShell T1218.011 Signed Binary Proxy Execution: Rundll32 T1059.005 Visual Basic

The sample contains VBA macros, specifically an AutoOpen macro, which is a common delivery mechanism for Emotet. The critical heuristic OLE_VBA_WMI_PROCESS_CREATE indicates that the macro attempts to launch a process using WMI. ClamAV detection also confirms this is a known Emotet dropper variant. The embedded URL is benign and likely a false positive.

Heuristics 7

  • VBA WMI Win32_Process launcher critical OLE_VBA_WMI_PROCESS_CREATE
    VBA macro builds or references a WMI moniker for Win32_Process and invokes .Create to start a command. This is a high-confidence macro execution chain that often hides the WMI class name through string concatenation or helper functions.
  • ClamAV: Doc.Dropper.Emotet-6959731-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Emotet-6959731-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
de32de415a8580ccc88fe817addbc4640e34303f85974b9627e7e3c7ca0e7c09		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20916 bytes

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