Emotet Office (OLE) / .DOCX malware analysis — malicious · d286eeb463240cec

MALICIOUS

Office (OLE) / .DOCX

141.8 KB Created: 2020-09-29 09:08:00 Authoring application: Microsoft Office Word

MD5: dfa216bfa2694bc83baf6c2f93ea1be3 SHA-1: 79c21ee72c0132f8ed7fa41f6a03943c0e1d8ad4 SHA-256: d286eeb463240cec38ca707bac6d0bab917ed05ed87cda5f42f3865dd2cbdc1d

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious document. The presence of VBA macros, specifically an auto-executing Document_Open macro that uses CreateObject, is characteristic of Emotet's delivery mechanism. The document body appears to be obfuscated or corrupted, but the heuristics confirm the intent to execute code. The primary IOC is the ClamAV detection signature.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9769137-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9769137-0
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` `2f5b3223d32b6b79c027453efef3c5410c27df5205b9cb2b32dd9a1e0304e007`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8132 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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