Emotet Office (OLE) / .DOCX malware analysis — malicious · 7fd63795daf27325

MALICIOUS

Office (OLE) / .DOCX

158.2 KB Created: 2020-12-29 13:14:00 Authoring application: Microsoft Office Word

MD5: 310259c559abc3a92198d0a902376940 SHA-1: 4cd3a34b4715178309f27a1609f6ed86937e47fb SHA-256: 7fd63795daf273255c8c7d1ee8a61cba9ca6420e62869e308c1ad96cbb3be6f8

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1059.001 PowerShell T1204.002 Malicious File T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically an auto-executing Document_Open macro that uses CreateObject, strongly indicate a malicious downloader. The presence of VBA macros and the Document_Open auto-execution point to an attempt to download and execute a second-stage payload. The ClamAV signature 'Doc.Downloader.EmotetRed02224-9938637-0' directly suggests the Emotet family.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `f0a26dbda37cee5a9e56f370f4faad071837ea1fd898646f154d0f1b66a66162`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8375 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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