Emotet Office (OLE) / .DOCX malware analysis — malicious · eff4ff103b1930c4

MALICIOUS

Office (OLE) / .DOCX

191.0 KB Created: 2020-10-27 20:26:00 Authoring application: Microsoft Office Word

MD5: 73ed98200f865fc54a8c54d5b9049215 SHA-1: 2ecc138bfae3737dedc0c2f6cee2f8f2830526d9 SHA-256: eff4ff103b1930c43c7f0ae267a43b853c4cc734db4c80473d028efff6e8f7f2

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as Emotet. The macro likely uses CreateObject to download and execute a second-stage payload. The obfuscated document body text does not provide direct clues to the user-facing lure.

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` `557610d73c449d90b5a2aabccaaf95f7a5897df031246bc03a17cf1b86e2503b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16372 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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