Emotet Office (OLE) / .DOC malware analysis — malicious · 844d9efee04baab1

MALICIOUS

Office (OLE) / .DOC

175.6 KB Created: 2020-10-20 22:39:00 Authoring application: Microsoft Office Word

MD5: 7d5c8fa0c42ecda207e5dbae01e2a6c7 SHA-1: e8f09d2142662ec053cad82f220998f0169cd027 SHA-256: 844d9efee04baab149ff86c31963c101151796f861eb84cd816fde655e3f7f78

202 Risk Score

Malware Insights

Emotet · confidence 90%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file contains VBA macros, specifically a Document_Open macro, which is a common Emotet infection vector. The macro uses CreateObject to execute obfuscated VBA code. ClamAV also detected this as Emotet. The embedded URL is benign, but the macro's execution of arbitrary code strongly suggests it's a downloader for a secondary payload.

Heuristics 6

ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
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.

Filename	Kind	Source	Size
`macros.bas` `130bc91dd8b5ad391a87daabf287b6e2ceed1d78136a29ff57bedf25aa736586`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18991 bytes

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