Emotet Office (OLE) / .DOC malware analysis — malicious · ee1a33fd81e68eef

MALICIOUS

Office (OLE) / .DOC

178.9 KB Created: 2019-04-12 11:40:00 Authoring application: Microsoft Office Word

MD5: 448776dd79a3e060fe1f012f6e7d56b4 SHA-1: 62d36e95ea8a091c40f5876ab03636cf310b6f53 SHA-256: ee1a33fd81e68eef2c49a0e4b3521bc11d455bbf96fb8360618c6cb120814e85

260 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1218 Signed Binary Proxy Execution T1059.005 Visual Basic

The file contains VBA macros, including an AutoOpen macro, which is a common delivery mechanism for Emotet. The critical heuristic firing indicates the use of WMI to launch a process, a known technique for Emotet to download and execute secondary payloads. The ClamAV detection explicitly names Emotet, further strengthening the family attribution. No specific URLs or executable payloads were directly extracted, but the presence of the AutoOpen macro and WMI process creation strongly suggests a downloader functionality.

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.

Filename	Kind	Source	Size
`macros.bas` `5f0483cc06817c54486e5ab18bf25933c3b24591d8f5490656bfc5ad3118dca6`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	32935 bytes

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