Emotet Office (OLE) / .DOC malware analysis — malicious · 20c81e0a8e1547a4

MALICIOUS

Office (OLE) / .DOC

176.5 KB Created: 2020-10-20 15:27:00 Authoring application: Microsoft Office Word

MD5: a1f48c4f6a9207268a50231ab3f812fb SHA-1: 4ad103900e37ce2701aca3f6618379eaf598f523 SHA-256: 20c81e0a8e1547a4fe23a6d435e61f31253f5036e68c7564ad0c5d1fbb79120a

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 OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious macro-based document. The presence of a Document_Open macro that uses CreateObject is a common Emotet delivery technique. The document body appears to be obfuscated or encoded, likely as part of the lure to enable macros. No scripts were extracted, but the heuristics are sufficient to identify the attack pattern and family.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
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` `4ae9206e4b66c21807f47ed3b7c5982ab29db0a36a53a5da071ac077a7c0588d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18780 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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