Emotet Office (OLE) / .DOCX malware analysis — malicious · cf6945d684eb6962

MALICIOUS

Office (OLE) / .DOCX

190.5 KB Created: 2020-10-27 23:09:00 Authoring application: Microsoft Office Word

MD5: 132f71485c1ce9edd21a0ff4f3fff92c SHA-1: abe1dca9f79b4f90c19504b61b8ac1923c60ca47 SHA-256: cf6945d684eb6962274cca88159c3f88a0a5291a81ac0d8831d9f6496b005c33

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically an auto-executing Document_Open macro using CreateObject, strongly indicate malicious intent. The presence of a VBA macro within a DOCX file, coupled with the Emotet family attribution by ClamAV, suggests this document is designed to download and execute a secondary payload. The document body appears to be heavily obfuscated, preventing a clear understanding of its lure, but the macro execution is the primary threat.

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` `32c875cc5445b529213c7b353e717e973bc3b3565cfb6b70a94210d83d471e9e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16135 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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