Emotet Office (OLE) / .DOC malware analysis — malicious · 4501c79a73528aec

MALICIOUS

Office (OLE) / .DOC

177.0 KB Created: 2020-10-21 04:38:00 Authoring application: Microsoft Office Word

MD5: 7f0f9a3dcf5cf1284ea27392ea3d1636 SHA-1: b24ad3765a1c80ff7d900691dd7bf50b881ea15a SHA-256: 4501c79a73528aecf3ff74f1390ce4470dac12af919fd23d7e1319bb35b19060

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open auto-execution macro. This macro is designed to create an object and execute code, a common pattern for Emotet. The ClamAV detection explicitly names Emotet. The presence of the 'macros.bas' file further supports this, as it is the source of the detected VBA macros.

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` `7f8cff52bb4ded49086d2df7b9cfebe2d016b73a3b091a757ad1794acb80249c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18885 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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