Emotet Office (OLE) / .DOCX malware analysis — malicious · 2465db836fb8ce33

MALICIOUS

Office (OLE) / .DOCX

176.1 KB Created: 2020-10-20 20:18:00 Authoring application: Microsoft Office Word

MD5: 8d052a2517d5c8204b8ccfeac9d4f13b SHA-1: 3ab8a89b5be65dc23a6dada5013c8d2eaa785eb2 SHA-256: 2465db836fb8ce33c72ba9c55528a00a290b770a2bb977ecaed539b453c1211b

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro in 'macros.bas' and the detection signature 'Doc.Malware.Emotet-9781039-0' are consistent with Emotet's known behavior of using macro-laden documents to download and execute further stages of malware. The document body content appears to be obfuscated or encoded, further supporting the malicious nature.

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` `3a0ea03d0cd0ea456810f4542b81cbd362ee0487bda83ef13f410b115b67e727`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18739 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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