Emotet Office (OLE) / .DOCX malware analysis — malicious · 2fcbe5dbdb069526

MALICIOUS

Office (OLE) / .DOCX

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

MD5: f469dea8f3725b70e7c769d2e973d157 SHA-1: 90d55d8e5b31b2ea02b2a8b9324d18e0efd773e4 SHA-256: 2fcbe5dbdb069526a9daacc2996b8e3d328162b29e0b31e68ef631603c7dd445

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious document. The presence of a VBA macro named 'macros.bas' and the detection signature 'Doc.Downloader.Emotet-9784225-0' point towards the Emotet family. The Document_Open macro is designed to execute VBA code upon opening the document, which is a common technique for downloading and executing further malicious payloads.

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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