Emotet Office (OLE) / .DOCX malware analysis — malicious · f69020e04f4db35c

MALICIOUS

Office (OLE) / .DOCX

187.9 KB Created: 2020-09-16 12:20:00 Authoring application: Microsoft Office Word

MD5: 0cba4c73634c91b171af1236b9c6c791 SHA-1: 33975c3f0fe28f4e46fcd51c975578bdfd7a18ae SHA-256: f69020e04f4db35cb20cb8f1d87da97a490d308d98a8936d823b354237657626

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 heuristic identifies this file as Emotet. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject to execute code. This indicates the document is designed to run malicious code upon opening, typical for Emotet's delivery mechanism of downloading and executing further stages. The presence of a VBA macro named 'macros.bas' further supports this.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762404-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762404-0
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` `49b4ebbf014fb7982286797412148a9d5a2325fbd8b23512b4e2381b987c3c86`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21867 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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