Emotet Office (OLE) / .DOCX malware analysis — malicious · e28b9264ec1942c7

MALICIOUS

Office (OLE) / .DOCX

243.6 KB Created: 2020-09-17 06:16:00 Authoring application: Microsoft Office Word

MD5: efe2f0fc52b32721c13c62bb11bcd051 SHA-1: 8d56f27b04914f06735f4e79e7a37826a7dd88dc SHA-256: e28b9264ec1942c7107b3ccf9259d754b9892e28eb458349bcabc8946b0c15e1

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

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 macro downloader. The presence of a Document_Open macro that uses CreateObject is a common pattern for Emotet. The macro likely downloads and executes a second-stage payload, as suggested by the ClamAV signature. No specific URLs or scripts were extracted to provide further detail on the payload.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02226-9938639-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02226-9938639-0
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` `8acac38431121e2787bcaf089ea6ff777ea901603bfdc5971f7059437b41c745`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20564 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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