Emotet Office (OLE) / .DOCX malware analysis — malicious · cc15090f18a75f7f

MALICIOUS

Office (OLE) / .DOCX

171.5 KB Created: 2020-10-27 18:11:00 Authoring application: Microsoft Office Word

MD5: e659cbedef21261ae02e3652dee4e307 SHA-1: 8a5ec7cd0eed75445202c619fbad47cf269f664c SHA-256: cc15090f18a75f7f0866db7ec86f1f0c98fa6738174837a0b025c30ad5cd3145

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 obfuscated VBA code within the macros.bas artifact, combined with the 'Emotet' family detection, suggests this document is designed to download and execute a secondary payload. The document body's unusual character encoding does not provide clear user-facing content but the underlying macro execution is the primary threat.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
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` `89a7392bd1c1f3fe3b1a4c5e97fc737fc9e550b299f3eb72f43817655c9c1c0c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16436 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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