Emotet Office (OLE) / .DOCX malware analysis — malicious · ebcd92e0c8b4a39b

MALICIOUS

Office (OLE) / .DOCX

197.1 KB Created: 2020-09-21 22:06:00 Authoring application: Microsoft Office Word

MD5: bb7fde82901f2d57905abe512bd59663 SHA-1: e8f898cf19afdb4aeb5a28c23d11c7dae3e7ce19 SHA-256: ebcd92e0c8b4a39b32a927e85ba031a58e12dd9dc00b15bf1c92a1a1140886d4

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature Doc.Malware.Emotet-9765425-0. Static analysis reveals the presence of VBA macros, specifically a Document_Open macro that utilizes CreateObject and GetObject calls. This indicates the macro is designed to execute code upon opening the document, a common technique for Emotet to download and run further malicious payloads. The heuristic firings strongly suggest an auto-execution mechanism within the VBA macros.

Heuristics 8

ClamAV: Doc.Malware.Emotet-9765425-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9765425-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `3f69d910c7ab65b68002c6115856f94d0a2fe7883066824f7d890ec0735d30db`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19084 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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