Emotet Office (OLE) / .DOCX malware analysis — malicious · 1a5c6149c4447267

MALICIOUS

Office (OLE) / .DOCX

188.8 KB Created: 2020-09-29 13:18:00 Authoring application: Microsoft Office Word

MD5: c190b6aab0d69cb11e97019003a85101 SHA-1: 772e61c92546c3fe4919c556fd2a3919770404bb SHA-256: 1a5c6149c4447267a0c56f3333aa587c52c6e3b0aff4f5a2df9b4d8b33ea1af2

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9769343-0', strongly suggesting the Emotet family. High-severity heuristics indicate the presence of VBA macros, specifically a 'Document_Open' macro that uses 'CreateObject' for execution. This points to a macro-based downloader designed to execute arbitrary code, likely to fetch and run additional malicious payloads. The obfuscated document body content does not provide further context on the lure, but the technical indicators are clear.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9769343-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9769343-0
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` `3466a25e0ec8edf0a3d6ff61e66e8183246c716be04ca7cccaa39032367b5dbf`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10303 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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