Emotet Office (OLE) / .DOCX malware analysis — malicious · d33c4ae00ce8eb3a

MALICIOUS

Office (OLE) / .DOCX

179.0 KB Created: 2020-10-27 08:32:00 Authoring application: Microsoft Office Word

MD5: 04a5c8aaf95cf60e673a0fef51745641 SHA-1: f6b38e56577c6440ac2886b877cde01765e9ad13 SHA-256: d33c4ae00ce8eb3a8f9d757ee656c99f36cd530dbbc1d0af2aedf233f46c87ec

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 VBA macros, including Document_Open and CreateObject calls, strongly indicate a malicious downloader. The presence of a VBA macro in macros.bas, coupled with the ClamAV signature, points to the Emotet family. The document body, though heavily obfuscated, contains patterns consistent with macro execution, likely intended to download and run a secondary payload.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
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` `baddc5814f280b1183f5ed27ce7fb5b9c59037bb5bb89b6abd277ce8e9a0cbe5`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15918 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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