Emotet Office (OLE) / .DOCX malware analysis — malicious · 7b59e4314d2b1bbe

MALICIOUS

Office (OLE) / .DOCX

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

MD5: 642dc0c582c4addd857a63c55b660635 SHA-1: 3415979d09e7e09bbf614db651655e28667ae2b2 SHA-256: 7b59e4314d2b1bbefd045815d54be5bd19315bcd13e3de6816a36bfd0930e032

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

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 the 'macros.bas' file, combined with the Emotet family detection, suggests this document is designed to download and execute a secondary payload. 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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