Emotet Office (OLE) / .DOCX malware analysis — malicious · b9a6ff1bdbfdc506

MALICIOUS

Office (OLE) / .DOCX

170.2 KB Created: 2020-09-16 14:22:00 Authoring application: Microsoft Office Word

MD5: b6d5be8133e89b18f55f60d97adc2d4a SHA-1: 35d75a047d284841859fdb92aa20c084877ce02c SHA-256: b9a6ff1bdbfdc506e17b3e590738e75cae3ce59614c8a77074df2b1d2abc3801

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious Office document. The presence of a Document_Open macro that uses CreateObject is a common Emotet delivery technique. The ClamAV signature specifically names Emotet, increasing confidence in the family attribution. No specific URLs or scripts were extracted to detail further payload delivery or execution.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762291-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762291-0
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` `9f558458f94a18a1753cb250fa701b5a4b696c6db0138705a67ec847e6bae57b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21795 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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