Emotet Office (OLE) / .DOCX malware analysis — malicious · 0d1b1abb174a0d84

MALICIOUS

Office (OLE) / .DOCX

174.0 KB Created: 2020-10-27 21:28:00 Authoring application: Microsoft Office Word

MD5: 8a0e7d0e66f0eed4ad499575dbb482db SHA-1: 204156edb1c172853f822832b9f8b98f6442e8dd SHA-256: 0d1b1abb174a0d844bca3ed5d58ad573622e243d7e1fec3bf2bbfcf78d53ed61

202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter

The sample is a Microsoft Office document containing VBA macros, specifically triggering a Document_Open auto-execution macro. The ClamAV heuristic identifies it as Emotet. The VBA code is heavily obfuscated but uses CreateObject, indicating it's likely attempting to execute arbitrary code, a common tactic for Emotet to download and run further stages. No specific URLs or executable payloads were directly extracted, but the presence of the macro and its known family association strongly suggests malicious intent.

Heuristics 6

ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
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` `8e0ab8816d43bd5ad9c1c0011689607d8d62edfed4931a09dce2c4955c56dadb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16529 bytes

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