Emotet Office (OLE) / .DOCX malware analysis — malicious · f8ce9f330d0b10e6

MALICIOUS

Office (OLE) / .DOCX

222.0 KB Created: 2020-10-28 06:28:00 Authoring application: Microsoft Office Word

MD5: b9ca01f1791ed267b4a63af83dd6ed08 SHA-1: 3a6ef4b1d7d18d192e1bda7608ac1d2bed360cd3 SHA-256: f8ce9f330d0b10e66d01f784d66c98d45fb6dc902c622d65ab15dbe965cf36bd

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 a VBA macro named 'macros.bas' further supports this. The Emotet family is known for using such techniques to download and execute further payloads.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
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` `7f3b9de1e0285548916c28f6601d8d02c3123bdd009e8218f5871d9b0b89faf5`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16327 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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