Emotet Office (OLE) / .DOCX malware analysis — malicious · b0e9328bcb95627a

MALICIOUS

Office (OLE) / .DOCX

150.7 KB Created: 2020-09-18 17:14:00 Authoring application: Microsoft Office Word

MD5: 906bdc663b6b95c5c1dc25cb87660bb2 SHA-1: d8ed8d38b78e90c810a93008579187ed895bb165 SHA-256: b0e9328bcb95627a9137ba580a2369f569f9636c2f9f46ec63d55da3c7810997

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file contains a high-confidence detection for Emotet, a known downloader family. Critical heuristics indicate the presence of VBA macros with auto-execution capabilities, specifically a Document_Open macro that uses CreateObject. This suggests the macro is designed to download and execute a second-stage payload. The ClamAV signature further corroborates the Emotet family attribution.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9763589-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9763589-0
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.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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` `96b83a59c729d4e2629caf4138babfc6cae62a32b23cb8c4d357b221daf4ba67`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20042 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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