Emotet Office (OLE) / .DOCX malware analysis — malicious · 9f2c651f45219213

MALICIOUS

Office (OLE) / .DOCX

161.5 KB Created: 2020-10-27 13:32:00 Authoring application: Microsoft Office Word

MD5: 106a913bfcbc9667e8d72e433075dde1 SHA-1: 3b37741830308cc061a6091aceecc27612f667b5 SHA-256: 9f2c651f45219213d5b582411db7948ab1c7cd7b67d8e8d2fba6d8929bd4c3b6

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, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro named 'macros.bas' further supports this. The ClamAV signature 'Doc.Downloader.Emotet-9784225-0' directly attributes this file to the Emotet family, which is known for its downloader capabilities. The document body's obfuscated nature suggests it's part of the lure, designed to mask the macro's execution.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
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` `aaf531f7a5bc5489efc2142934ae4807c7a8fc52a02b1483f9210c80918c01e7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16228 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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