Emotet Office (OLE) / .DOCX malware analysis — malicious · f22a2e1ffde1f101

MALICIOUS

Office (OLE) / .DOCX

158.6 KB Created: 2020-10-20 04:30:00 Authoring application: Microsoft Office Word

MD5: 6c9cdc1f853e359f38d3f1d02a3168e8 SHA-1: b199b8a92bb4dfb890d054d6e18fb2c1c75e3a49 SHA-256: f22a2e1ffde1f1013983eefa4e4dc25cd58590aaf8ae33f7989b9d0a5cbe6b15

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a common delivery mechanism for Emotet. The critical ClamAV detection further supports the Emotet family attribution. The macro likely uses CreateObject to download and execute a second-stage payload, although the specific URL is not directly extractable from the provided evidence.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
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` `bec182db065394791f950a49edfb2bfa66cb6693b62758841681c782964c8b6d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15615 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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