Emotet Office (OLE) / .DOCX malware analysis — malicious · 31f67e64c7a0411d

MALICIOUS

Office (OLE) / .DOCX

102.6 KB Created: 2020-09-29 17:52:00 Authoring application: Microsoft Office Word

MD5: 3f945cce4a2ddc20b0a9733af7064e16 SHA-1: 42b1e9dfb34d8cc1e5196915624649cd34f8e3ba SHA-256: 31f67e64c7a0411d24c452b30748e19b43c0f267b5bca1f0f3e5a6ea1ff518a2

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9769356-0', pointing to the Emotet family. The macro likely uses CreateObject to download and execute a second-stage payload. The document body appears to be obfuscated or corrupted, but the presence of macros and the ClamAV signature are sufficient for a high-confidence assessment.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9769356-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9769356-0
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` `77f0fc2bd0d5c985be4d4cb3501afb191ffadc98be204ef2c40c091585c5d90a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10395 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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