Emotet Office (OLE) / .DOCX malware analysis — malicious · cb03912b61593521

MALICIOUS

Office (OLE) / .DOCX

178.5 KB Created: 2020-10-26 17:32:00 Authoring application: Microsoft Office Word

MD5: e3494b3941d645da24c2e65a82e7e1ba SHA-1: 5762367ed694fa08b5fc76b0282cf422bac039f2 SHA-256: cb03912b61593521af131c3ce32772bf24f99a30cda9985f1f8581ba6be8c285

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9784039-0', indicating it's a downloader for the Emotet family. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject, suggesting it's designed to run malicious code upon opening. The embedded URL, though benign according to reputation, is often used in conjunction with malicious payloads.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
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` `fd86ec2eb619814e7cd62b76d9f6553c2ce07800d98173938893210dd89c469b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15663 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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