Emotet Office (OLE) / .DOCX malware analysis — malicious · b61ffccc2459f78a

MALICIOUS

Office (OLE) / .DOCX

204.0 KB Created: 2020-10-28 12:00:00 Authoring application: Microsoft Office Word

MD5: 387b0b5ac511a2cf0cd160e1c76ac889 SHA-1: bef232e48a5c5b4fc3dbef59efcb0bf0735a6d30 SHA-256: b61ffccc2459f78a7d0b2dea3c749ebe72f4ab3b6ca6dd6099d2548537561a08

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9784450-1', indicating a known Emotet variant. High-severity heuristics confirm the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject' for execution. This suggests the macro is designed to automatically run malicious code when the document is opened, a common tactic for Emotet to download and execute further stages. The document body content is obfuscated and does not provide direct clues to the lure, but the technical indicators strongly point to Emotet's typical behavior.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
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` `b98bc6262a06d3ed5a9ef1ffbdbcd180eadae66998aa40fa38b234fae6ec34b7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17061 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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