Emotet Office (OLE) / .DOCX malware analysis — malicious · 7bf0020fa5c284f0

MALICIOUS

Office (OLE) / .DOCX

169.1 KB Created: 2020-09-28 19:59:00 Authoring application: Microsoft Office Word

MD5: be5627123d6ec4c43e00c2c4d404c3f2 SHA-1: 8f10c7c6bd2628112fa76feacb555e238966eccd SHA-256: 7bf0020fa5c284f04b805e38e363c917a7947a5cbc5bd2c8f44d92a3c9ce2926

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

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 6701-byte VBA macro in 'macros.bas' suggests the execution of code designed to download and run a secondary payload, consistent with Emotet's typical behavior. The document body content is obfuscated and does not provide further clues.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9768661-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9768661-0
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` `387c5ef7909231ea8caee5f9881fb86538a4be7f74672ee227b824bdfa4a7d92`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6701 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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