Emotet Office (OLE) / .DOCX malware analysis — malicious · 479077eb3bd16963

MALICIOUS

Office (OLE) / .DOCX

151.2 KB Created: 2020-10-01 07:06:00 Authoring application: Microsoft Office Word

MD5: 16149c9933097d954d4ba7380b265a61 SHA-1: f164454ff9cac7f8b4e768188020941b3f834200 SHA-256: 479077eb3bd16963216cc0cf3dfc5de77a55af235a1fb1754cc0e8a1f0dd100c

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The sample was identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9770156-0'. High-severity heuristics indicate the presence of a VBA Document_Open macro that uses CreateObject to execute p-code, a common Emotet delivery technique. The presence of VBA macros and the specific ClamAV signature strongly suggest Emotet. The document body appears to be heavily obfuscated or corrupted, preventing a clear understanding of its lure, but the macro execution is the primary indicator of malicious intent.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9770156-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9770156-0
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` `edcbc228f949e002f32423fcc2aae89e10357cf04ecc19d5df06e1df6cb28a25`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10406 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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