Emotet Office (OLE) / .DOCX malware analysis — malicious · 67bd10eec5edc05a

MALICIOUS

Office (OLE) / .DOCX

170.5 KB Created: 2020-10-27 05:39:00 Authoring application: Microsoft Office Word

MD5: f595ef93f7c0a3fd2f465a2294d46de6 SHA-1: 1602102162320f03ec6b24316f524ad9b69bccbd SHA-256: 67bd10eec5edc05a357c8b7feaf5f56446cf27fd1ff17d30da3afb170199adcd

202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The ClamAV detection also explicitly names Emotet. The macro likely uses CreateObject to download and execute a second-stage payload, as indicated by the heuristic firings.

Heuristics 6

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.
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` `4ba1afe08d79409e1497ca07456a809cf749d23c9ed8d7cdfc9c80ecc4d07df6`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15890 bytes

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