Emotet Office (OLE) / .DOCX malware analysis — malicious · af52f7dcb0121615

MALICIOUS

Office (OLE) / .DOCX

161.1 KB Created: 2020-09-24 23:07:00 Authoring application: Microsoft Office Word

MD5: c0e4faa8ddbb6df44f1c2aebae607dba SHA-1: 21f40b8ba891e6f711cd78e828b68dd58c00d420 SHA-256: af52f7dcb0121615419cdc0f3a24e218d10a8e6a1ce87d8bd7335d4a8ee75f3a

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 indicate this is a malicious document. Specifically, the presence of a Document_Open macro that uses CreateObject and VBA p-code auto-execution strongly suggests the execution of malicious code. The DOC BODY appears to be obfuscated or corrupted, but the presence of VBA macros and the ClamAV signature point towards Emotet, a known downloader family. The macro likely attempts to download and execute a second-stage payload.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9765780-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9765780-0
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` `822ca2bb5afccdd585dd9d4b3c04999cc0b411b7c4b99b6e373f1239fc1c4ef1`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	26832 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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