Emotet Office (OLE) / .DOCX malware analysis — malicious · 5811f21b56ff4e4e

MALICIOUS

Office (OLE) / .DOCX

171.5 KB Created: 2021-01-05 12:07:00 Authoring application: Microsoft Office Word

MD5: efe0eddde800e99b58a26a2272123900 SHA-1: 35b76a466cc157be272592a044524b1329d68f13 SHA-256: 5811f21b56ff4e4ebecda822447d72e3375952d4762d2289f132db72185e47ea

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, including auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a Document_Open macro suggests the malware attempts to execute immediately upon opening the document. The ClamAV signature specifically names Emotet, supporting this family attribution. The obfuscated document body content does not provide further insight into the specific lure.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `5fd199a84582bf2c4248191e49df05fe3a9d17ab4a6f639ead9a581ea6be129f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10799 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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