Emotet Office (OLE) / .DOC malware analysis — malicious · 188b4e00fb268101

MALICIOUS

Office (OLE) / .DOC

68.0 KB Created: 2019-12-09 06:08:00 Authoring application: Microsoft Office Word First seen: 2022-05-26

MD5: b8ec7d16acf6131c28a1f339dab3fee0 SHA-1: a6e15e55eeee5e652a11cfbce701e55c0cfddaae SHA-256: 188b4e00fb268101935d345bb3a0b55e2141db18a8b438f90d37a7645b48dea3

262 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File T1059 Command and Scripting Interpreter T1190 Exploit Public-Facing Application

The sample is a malicious Office document containing VBA macros, specifically a Document_Open macro that utilizes CreateObject to launch a process via WMI. This is a common technique for downloading and executing further malicious payloads. ClamAV detection confirms this as Emotet, a known downloader.

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-7440468-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-7440468-1
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.

Filename	Kind	Source	Size
`macros.bas` `8318e040fe001084ed4c7a0ec961619856e2a21a18f4d6666ba157252b01a70b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8307 bytes

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