Emotet Office (OLE) / .DOCX malware analysis — malicious · 3fd470eca71c46a4

MALICIOUS

Office (OLE) / .DOCX

172.5 KB Created: 2020-10-26 07:07:00 Authoring application: Microsoft Office Word

MD5: f1145f38918ebfba1121348120d57be9 SHA-1: 1aa2bd314e4fdc8de56e10a16f94de8e9d439982 SHA-256: 3fd470eca71c46a4bb577fdc1cc3da1cbce65d3b3e4ce06f8910aca64927e1b8

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for VBA macros, including an auto-executing Document_Open macro and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro, specifically identified as a downloader by ClamAV, suggests the file's purpose is to fetch and execute additional malicious content. The document body, though heavily obfuscated, contains patterns consistent with macro execution.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9783942-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9783942-0
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` `c68bd7af3cf9a50b88bbe135228cd5b393b6d0143e5a959d6b377f6063b17e65`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15733 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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