Emotet Office (OLE) / .DOCX malware analysis — malicious · 3cc8c557bf3d2dd4

MALICIOUS

Office (OLE) / .DOCX

153.2 KB Created: 2020-10-16 13:32:00 Authoring application: Microsoft Office Word

MD5: 43df1eec6e3d7d814d4811d44783ec45 SHA-1: f70ac3b310df76f6388d846812e1eb3013b6e0fa SHA-256: 3cc8c557bf3d2dd43a937e6a38d78f32dddf8e118a06663c5eb8f3dbb4bb9afc

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 detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of the 'Emotet' family name in the ClamAV signature further supports this attribution. The VBA macros are designed to execute automatically upon opening the document, a common tactic for Emotet to download and execute further stages of malware.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9778560-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9778560-0
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` `80b8cf2680dee027d2b0bedfb311ad72d589d776013195663ff998d7cc50edcd`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15454 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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