Emotet Office (OLE) / .DOCX malware analysis — malicious · 54496830b594a269

MALICIOUS

Office (OLE) / .DOCX

156.1 KB Created: 2021-01-04 18:59:00 Authoring application: Microsoft Office Word

MD5: dc34e31c37f6014ae6199ec4f8c1a57c SHA-1: 1d5b93b0479889a21d918c98a5b42b4645febbb3 SHA-256: 54496830b594a269cf3ec9c90a9358b797f967912c3e7ee8c6a8da7f31135f12

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious document. The presence of a 7154-byte VBA macro, identified as 'macros.bas', suggests it is responsible for the malicious behavior. The macro likely downloads and executes a second-stage payload, consistent with Emotet's typical delivery mechanism.

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` `28e0aab9def1820176582f12126397a14f2c858209766b704c735ce1d1db4cc2`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	7154 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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