Emotet Office (OLE) / .DOCX malware analysis — malicious · 18a08bfde32fec48

MALICIOUS

Office (OLE) / .DOCX

168.2 KB Created: 2020-09-14 11:57:00 Authoring application: Microsoft Office Word

MD5: 3931eee56db12b625b5435d7a63ef290 SHA-1: 93225863adaba181648913e4c537ec22a613e3c4 SHA-256: 18a08bfde32fec48dd39f4ba41cd7449d4169cd9252a6dcc077cd7fdca819191

202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro attempts to execute a PowerShell command that appears to download and execute a second-stage payload. The ClamAV detection also strongly suggests Emotet.

Heuristics 6

ClamAV: Doc.Malware.Emotet-9762269-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762269-0
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` `8a39fc8d6eec119bccb9074c742cbab236c89f429d1a306c2818d1568d873603`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25223 bytes

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