Emotet Office (OLE) / .DOC malware analysis — malicious · 4e378ab4f6999928

MALICIOUS

Office (OLE) / .DOC

180.0 KB Created: 2020-10-27 15:55:00 Authoring application: Microsoft Office Word

MD5: 6b38718c2e9f959828eb7311cdfce5d0 SHA-1: 76b8a0580e7553d28ec8e65a9b0f696d51cd07fa SHA-256: 4e378ab4f6999928ceaa7af5e7e73e1ad008194d6b6d3132dadeb8665c3ce2f8

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample was detected by ClamAV as Doc.Downloader.Emotet-9784225-0, indicating a known Emotet downloader variant. High-confidence heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that utilizes CreateObject. This strongly suggests the macro is designed to download and execute a second-stage payload. The obfuscated document body content is likely a lure, but the core malicious functionality is driven by the VBA code.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
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` `041f40187eb07e2256edf903ca2aa818eaff7dc6fcfd4bf44314c9f8902df953`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16848 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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