Emotet Office (OLE) / .DOC malware analysis — malicious · 4ee0bf78e3b0a06c

MALICIOUS

Office (OLE) / .DOC

172.2 KB Created: 2019-12-10 21:12:00 Authoring application: Microsoft Office Word

MD5: 6ad036ba93c94d6976e2d93c7a3aec6f SHA-1: cb098f7a0492454a31f3819a1b7ec143c0c507b6 SHA-256: 4ee0bf78e3b0a06c35fed0f912db6fabbb5fae13f838cd4132634359ad0d24da

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The sample is a malicious OLE document containing VBA macros, specifically triggering a Document_Open macro that uses CreateObject. ClamAV identifies this as Emotet-7443840-1, a known downloader family. The presence of the 'macros.bas' file and the 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristic strongly suggest the macro is designed to execute a secondary payload, likely downloaded from an external source.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-7443840-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-7443840-1
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` `82daf0565dd08e7a55622b6ad9c3a3a2c2fffefbd3f448a0028777dcbb5c7498`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6806 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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