Emotet Office (OLE) / .DOCX malware analysis — malicious · bb38fd4e0a51bea1

MALICIOUS

Office (OLE) / .DOCX

149.7 KB Created: 2020-09-29 07:27:00 Authoring application: Microsoft Office Word

MD5: 909f0a73b0a0ba16a718aaa0dfdff5d9 SHA-1: a40f8e91d42be418b46b7ca80e21bb3b083213a1 SHA-256: bb38fd4e0a51bea16ec8751b920cad8962b536c4f11a5e14da6bea46ae0c6138

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file contains VBA macros, specifically a Document_Open macro, which is a common execution vector for Emotet. The ClamAV detection explicitly names Emotet. The macro's use of CreateObject and p-code auto-execution further supports this. The document body appears to be obfuscated or corrupted, but the presence of the macro and the ClamAV signature strongly indicate a downloader functionality.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9769096-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9769096-0
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` `7fe684c304685628252d7c0111d3e33f34436ae7810b3dde5f2aa07edc7bb621`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8166 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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