Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 e69b3cc57461e64e…

MALICIOUS

Office (OLE) / .DOC

178.4 KB Created: 2019-04-12 11:40:00 Authoring application: Microsoft Office Word
MD5: e8fb6a0969698b3b62bd1af3bb8deac3 SHA-1: 52b33768bb9f452d75d1b4ae4fb799ade682b615 SHA-256: e69b3cc57461e64edfda52ea2c13ddcd89f233c5a7c212e29580519a185b88d9
260 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.001 PowerShell T1218.011 System Binary Proxy Execution: Rundll32

The sample contains VBA macros, including 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. The ClamAV detection explicitly names this file as 'Doc.Downloader.Emotet-6939138-0', strongly suggesting the Emotet family. The macro's intent is to download and execute a second-stage payload.

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.Downloader.Emotet-6939138-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-6939138-0
  • 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
b88f762b952b61842f0d873091c9944b57678c74efec39afca08d947a94a95b2
vba-macro oletools.olevba.extract_macros (decoded VBA source) 32935 bytes