Emotet Office (OLE) / .DOCX malware analysis — malicious · e549afaef9205d53

MALICIOUS

Office (OLE) / .DOCX

219.0 KB Created: 2020-10-28 06:34:00 Authoring application: Microsoft Office Word

MD5: bf466cbc9de9314f403c10a7ba9955aa SHA-1: a39ff75582675e2997402d18abd3d36e1e4a8e08 SHA-256: e549afaef9205d532d55d91cec38651852e85a6cb0bfbfc07904a59f1a6b211c

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The critical ClamAV heuristic identifies this file as Emotet. The presence of a Document_Open VBA macro, which uses CreateObject and p-code auto-execution, strongly indicates malicious intent. This macro is likely responsible for downloading and executing a second-stage payload, a common Emotet tactic. The document body content is unreadable, but the heuristics and ClamAV detection are sufficient for attribution.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
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` `5c8508b4422f9cf9f0517311e463bebb8a10b40538c4b01e1d12399253dacfe3`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16608 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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