Emotet Office (OLE) / .DOC malware analysis — malicious · ba4f1b0315011614

MALICIOUS

Office (OLE) / .DOC

212.4 KB Created: 2020-12-22 07:17:00 Authoring application: Microsoft Office Word

MD5: 8fd81be8a28ba57ad39a1138068fc7be SHA-1: ebca99380ef7dfcf08d8fdb1f5b279e0eba7e579 SHA-256: ba4f1b0315011614657acd45791a8c860b549b9065f1d4095faaac9543cac0ba

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious downloader. The presence of a VBA macro named 'macros.bas' further supports this. The ClamAV signature 'Doc.Downloader.Emotet-10024800-0' directly attributes this sample to the Emotet family. The obfuscated document body text, while not directly readable, is consistent with lures used by Emotet to prompt macro execution.

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` `14cb129666fe7236490ef39627e3d26aa75021ad0921a70c33afa54d1e6f48ea`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16345 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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