Emotet Office (OLE) / .DOCX malware analysis — malicious · b5dcefa00718c69e

MALICIOUS

Office (OLE) / .DOCX

148.1 KB Created: 2020-09-28 14:26:00 Authoring application: Microsoft Office Word

MD5: 5ba2c7f39526b6a6ea240c5e96d8dcdb SHA-1: 273bd64a8b9bf2dd391713b4335149d70ae8185f SHA-256: b5dcefa00718c69e6ac0d71818f99e2f2eda27c7e8c6e34d1c3f8ff0aaf6f034

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains a malicious VBA macro, specifically a Document_Open auto-exec macro, which is a strong indicator of Emotet. The macro uses CreateObject to execute code, and ClamAV detection confirms it as Emotet. The document body content appears to be obfuscated or corrupted, providing no clear lure, but the macro's presence and the ClamAV signature are sufficient for attribution.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9768663-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9768663-0
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` `52573b116f951816e527b23fd5cfdfc578caca117ddeb459f950d0953f709442`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6643 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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