Emotet Office (OLE) / .DOC malware analysis — malicious · 7c73f900c1898e28

MALICIOUS

Office (OLE) / .DOC

170.2 KB Created: 2020-12-21 08:45:00 Authoring application: Microsoft Office Word

MD5: 964b96101cdae1aac22f0f7df9bd95e6 SHA-1: f47c1aacbb7e2cb5885e69748c2fb052b0c4455b SHA-256: 7c73f900c1898e281c609f02e680c1f7b5d8ddff8a5ed4f264081afe5377b1b3

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1041 Exfiltration Over C2 Channel T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically an auto-executing Document_Open macro that uses CreateObject, strongly indicate Emotet. The macro is designed to execute malicious code, likely downloading and running a second-stage payload. The document body, though heavily obfuscated, contains text suggesting an error or problem with opening the file, a common lure for malicious documents.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
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` `0fdc9223f52b7ee90ac3834adf4705b390b3503f5df6aece129089509fec490d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10321 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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