Emotet Office (OLE) / .DOCX malware analysis — malicious · cfa36c0d508468f2

MALICIOUS

Office (OLE) / .DOCX

288.3 KB Created: 2020-10-29 11:27:00 Authoring application: Microsoft Office Word

MD5: 3045a684c97801fa7a4319aad49770dc SHA-1: 9a7d1394e12da8d98e231eabb85b6f3a0e0e5803 SHA-256: cfa36c0d508468f2cf61316f8dbd8450a7b47f82db3d41cb35c359593f23a91c

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 indicate this is a malicious document downloader. Specifically, the presence of a Document_Open macro that uses CreateObject and p-code execution strongly suggests it's designed to run arbitrary code. This aligns with Emotet's typical behavior of downloading and executing further stages. The embedded URL, though benign, was likely a placeholder or part of a larger delivery chain.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `898dac0a9fbba39aaf7a14ff7100c80bc81af6e0cb0f2cf6d397c84d46877d50`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18710 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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