Emotet Office (OLE) / .DOCX malware analysis — malicious · 48a443d0ad6f5a72

MALICIOUS

Office (OLE) / .DOCX

202.0 KB Created: 2020-09-25 06:51:00 Authoring application: Microsoft Office Word

MD5: f28e03890ffb1b0afe11af7e71ed89e4 SHA-1: 66f106060f38ccdf8c7d9ec701fb7f6063fddc8f SHA-256: 48a443d0ad6f5a7221d22b942387069852f6bb26e9b7021896f0e00bb686e8cf

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious macro downloader. The Document_Open macro is designed to execute obfuscated PowerShell commands, as suggested by the DOC BODY content, which is typical for Emotet's initial infection vector. The embedded URL, though benign, is part of the document's structure.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9767804-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9767804-1
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` `d802c65eb8f9df036cf46e9408744e30c5d95dae54b582b9f65ecb84ecb28fa8`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25261 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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