Emotet Office (OLE) / .DOCX malware analysis — malicious · 2107f6f0e72299c2

MALICIOUS

Office (OLE) / .DOCX

162.8 KB Created: 2020-10-01 15:57:00 Authoring application: Microsoft Office Word

MD5: 80b9a5f2783be98a162515d6bce7d6d6 SHA-1: f83a87a2dd4c7666702fe0d6cc4915e9877c785f SHA-256: 2107f6f0e72299c2de738a72439bb6cde55017598205cfb4bb904def95c32fcd

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 VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of VBA macros, particularly those using auto-execution and object creation, is characteristic of Emotet's delivery mechanism. The obfuscated document body content, while not directly readable, further supports the presence of malicious scripting. The primary function appears to be the execution of embedded VBA code, which is known to download and execute additional malicious payloads.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9770197-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9770197-0
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` `34626713db5720b3147c8823fb8dfd0fe34a12fce4df5a0aa65f24e3eab9d078`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10368 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 53 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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