Emotet Office (OLE) / .DOCX malware analysis — malicious · a22d83a786eb7f5a

MALICIOUS

Office (OLE) / .DOCX

176.9 KB Created: 2020-10-20 20:18:00 Authoring application: Microsoft Office Word

MD5: 2963b34869985c509e32adb39339cec1 SHA-1: 3f7a4bc7218946c91a89c6d9ba13ed1aca374b06 SHA-256: a22d83a786eb7f5a04facaabb04117ecb5f8cdf09fcbb8405c0a70c97a51f225

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 OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious macro-based document. The Document_Open macro is designed to execute code via CreateObject, a common technique for downloading and executing further payloads. The ClamAV signature specifically identifies this as Emotet. No document body text was available for analysis, but the macro behavior is sufficient for attribution.

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` `3a0ea03d0cd0ea456810f4542b81cbd362ee0487bda83ef13f410b115b67e727`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18739 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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