Emotet Office (OLE) / .DOCX malware analysis — malicious · dfe4f3c6a36f573a

MALICIOUS

Office (OLE) / .DOCX

162.6 KB Created: 2020-10-01 15:57:00 Authoring application: Microsoft Office Word

MD5: 4977e8c3d9d20406e5e0566b2e2df159 SHA-1: ac82fb43345e4c7448a986e33105de3d61389a31 SHA-256: dfe4f3c6a36f573a9c20db981965f62f3d2a4b899d4fc6b7f5b687fafa8c5284

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 file, combined with the Emotet family detection, suggests the primary function is to download and execute a secondary payload. The document body's garbled nature is consistent with obfuscation techniques.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9770197-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9770197-0
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` `34626713db5720b3147c8823fb8dfd0fe34a12fce4df5a0aa65f24e3eab9d078`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10368 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 53 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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