Emotet Office (OLE) / .DOCX malware analysis — malicious · 3994cfcf6b94d996

MALICIOUS

Office (OLE) / .DOCX

173.8 KB Created: 2020-10-20 14:16:00 Authoring application: Microsoft Office Word

MD5: 21ca921130f5311c72d97a2e31974b1d SHA-1: d492d8ee973e545f85a7d9bc5dc4e879b9c14c9e SHA-256: 3994cfcf6b94d9969d21a1d8c6b8c12cd8675304adeac944f62c5d911ec5cb99

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9781039-0'. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' auto-execution macro that utilizes 'CreateObject'. This indicates the document is designed to run malicious code upon opening, likely to download and execute a secondary payload. The Emotet family is strongly suggested by the ClamAV signature.

Heuristics 7

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.
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` `417a16a51c05c178612698fd783ed577ce9b3b76b7f937b9782e824861e12aec`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18804 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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