Emotet Office (OLE) / .DOCX malware analysis — malicious · d4dff148c130a6e3

MALICIOUS

Office (OLE) / .DOCX

152.7 KB Created: 2020-09-23 06:50:00 Authoring application: Microsoft Office Word

MD5: cda0956a357fbf7564359d151411d1fb SHA-1: 951befe9a759e463d70313ebcddd6ab2ee1a02de SHA-256: d4dff148c130a6e3e0d944a665973ccf262c6cbd24a43f586d4e93e05f9900dc

280 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 macro that is configured to execute automatically. Heuristics indicate the use of CreateObject and GetObject, common for downloading and executing payloads. ClamAV detection explicitly identifies the file as 'Doc.Downloader.Emotet-9765526-0', strongly suggesting Emotet family and a downloader function. The document body content is highly obfuscated and does not provide clear user-facing text, but the presence of the Document_Open macro and the ClamAV signature are sufficient indicators of malicious intent.

Heuristics 8

ClamAV: Doc.Downloader.Emotet-9765526-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9765526-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `b9cffb0e79babc4a34c180b4e03d44a772a85b301d6c58e52fd57eb504592664`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19838 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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