Emotet Office (OLE) / .DOCX malware analysis — malicious · f705caf3b7dd3cb9

MALICIOUS

Office (OLE) / .DOCX

188.9 KB Created: 2020-09-16 12:20:00 Authoring application: Microsoft Office Word

MD5: cf95f575e679b09294fdff34d9e4c029 SHA-1: 721ea23be9768c0f377cac04d883d8312ed6d81e SHA-256: f705caf3b7dd3cb911c258ee86b3c77fa6d5eb999f7799044ce66986b39fda81

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9762404-0', strongly indicating the Emotet family. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open macro that uses CreateObject, and p-code auto-execution. These elements suggest the macro is designed to run automatically and likely download and execute a second-stage payload. The document body content is heavily obfuscated and unreadable, providing no direct clues to the lure.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762404-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762404-0
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` `49b4ebbf014fb7982286797412148a9d5a2325fbd8b23512b4e2381b987c3c86`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21867 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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