Emotet Office (OLE) / .DOC malware analysis — malicious · 59b1087ec423c56c

MALICIOUS

Office (OLE) / .DOC

234.5 KB Created: 2020-10-27 16:31:00 Authoring application: Microsoft Office Word

MD5: ee1d7753232b3855e6f631359d6bdd8b SHA-1: ad5b90796f39c016328c90647d47a3f96334843a SHA-256: 59b1087ec423c56cba3ca5ef050b8f86a9fb22ddddcf096ca6d92363efaabe2f

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 OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC indicate a malicious macro-based document. The Document_Open macro is designed to execute obfuscated VBA code, which is characteristic of Emotet's delivery mechanism for downloading and executing further stages. The presence of the 'macros.bas' artifact further supports this. The document body content appears to be heavily obfuscated or corrupted, providing no direct clues to the lure.

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` `0a0a4676352320ca49d8095a6fb5e81d0c369a87b63f71cdd1d1722b6107ad49`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16530 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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