Emotet Office (OLE) / .DOCX malware analysis — malicious · 46d30c35aff2df7c

MALICIOUS

Office (OLE) / .DOCX

172.7 KB Created: 2020-09-16 13:35:00 Authoring application: Microsoft Office Word

MD5: 52c86b1a02525a0b929b082a29a9d851 SHA-1: 719521c9cc0be5dddbb05e9aa15360bce7b5d4e6 SHA-256: 46d30c35aff2df7cc6438f8f9e408197413eb6ba8d9137a67dffea41e8997c2b

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV heuristic identifies this file as Emotet. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that utilizes CreateObject, indicating the execution of malicious code. The presence of the 'macros.bas' artifact further supports this. The primary attack pattern involves leveraging the auto-executing macro to initiate the malicious payload.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762108-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762108-0
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` `0bb2e800f836433b719494fb3a2cf1fc895dd947fc7213e26f377d26b01e1554`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	22004 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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