Emotet Office (OLE) / .DOCX malware analysis — malicious · 51eff3c97b109426

MALICIOUS

Office (OLE) / .DOCX

188.9 KB Created: 2020-09-16 12:20:00 Authoring application: Microsoft Office Word

MD5: ee1e91462b97fb9cb670e3e6d79254c1 SHA-1: 3ba4ae3f484be2d1b7ad8ae927b3ced688dcc93e SHA-256: 51eff3c97b1094265d1ef39db7e00c388742dd15db6d603e60b493faa04c352d

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 explicitly names Emotet, and the presence of a Document_Open VBA macro that uses CreateObject strongly indicates malicious intent. The macro is designed to execute arbitrary code, typical of Emotet's downloader functionality. The heuristic firings confirm the presence and auto-execution of VBA macros, aligning with Emotet's known delivery methods.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762404-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762404-0
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` `49b4ebbf014fb7982286797412148a9d5a2325fbd8b23512b4e2381b987c3c86`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21867 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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