Emotet Office (OLE) / .DOCX malware analysis — malicious · b66a18bc5690f1ee

MALICIOUS

Office (OLE) / .DOCX

168.0 KB Created: 2020-10-26 10:57:00 Authoring application: Microsoft Office Word

MD5: b0a76c475610b93bf68ef5f36e044aff SHA-1: 7cfc824b5f0278b70feec7ec8fbd914148fd6403 SHA-256: b66a18bc5690f1ee03097c641de0c0232d3b9f8d8868100d02110176efb474f1

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious macro downloader. The presence of a Document_Open macro that uses CreateObject suggests the execution of a second-stage payload. The ClamAV signature specifically names Emotet, a known downloader family.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9783962-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9783962-0
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` `73da4e56546636c0246d24a128ee097e3f12e124f4b51048532455144fb1d70c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15915 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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