Emotet Office (OLE) / .DOCX malware analysis — malicious · 498851ab9ce69c8a

MALICIOUS

Office (OLE) / .DOCX

195.2 KB Created: 2020-09-16 06:48:00 Authoring application: Microsoft Office Word

MD5: fd59c31907047220167c022808a85a08 SHA-1: 5affecaef7f7e53c0e9023d6fdd8c720f124abec SHA-256: 498851ab9ce69c8a81c7e61242bc6897b23a7d9c7a5d961cfa1eb17705de72dc

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

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 malicious VBA macro execution. The presence of a Document_Open macro that uses CreateObject points to an automated execution chain. The ClamAV signature specifically names Emotet. The document body is heavily corrupted and unreadable, but the macro heuristics are sufficient for attribution.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762408-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762408-0
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` `df4fb732414a2f9f369567b5a31d1b266832fcbd15a8b5f56fa79c20074a71e7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25460 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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