Emotet Office (OLE) / .DOCX malware analysis — malicious · 53ce8bc408537cd3

MALICIOUS

Office (OLE) / .DOCX

174.4 KB Created: 2020-10-20 19:38:00 Authoring application: Microsoft Office Word

MD5: 24be19ccbdfff2d1d667641cfb7077ad SHA-1: ec94d80f56c1a3742fb8b4f390ae13ff4c57dd8b SHA-256: 53ce8bc408537cd3a3ca0e9870075deef77223b9de63a7c77c668a03d5b468da

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

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 'macros.bas' file further supports this. The ClamAV signature 'Doc.Malware.Emotet-9781039-0' directly attributes this to the Emotet family. The macro likely downloads and executes a second-stage payload.

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` `cc8c4959929e54bcaa17b9379ada4c4b2b5fe7ea894a71f152f85bce5d465abd`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18782 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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