Emotet Office (OLE) / .DOCX malware analysis — malicious · 17d5bfb8d831eb1b

MALICIOUS

Office (OLE) / .DOCX

175.2 KB Created: 2020-10-30 13:48:00 Authoring application: Microsoft Office Word

MD5: f1b0b36df38b0a0386b33229fb9a5b9d SHA-1: 06b1b3516b013bdc8e74bee84dbba985ae4b3547 SHA-256: 17d5bfb8d831eb1b5f2defabb4f6b29c2c2f65bc90c0b310d7e0867ac11c125f

202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample was detected as malicious by ClamAV with a specific Emotet signature. Heuristics indicate the presence of VBA macros, including a Document_Open auto-execution macro and CreateObject calls, which are commonly used by Emotet to download and execute further stages. The obfuscated VBA code and the embedded URL, though benign, suggest an attempt to hide malicious activity.

Heuristics 6

ClamAV: Doc.Malware.Emotet-9785300-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9785300-0
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` `6ef446d7bbe59b96b37194ceef7dfc21ebc83ff1edf01838a31098c50a7e733f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17445 bytes

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