Emotet Office (OLE) / .DOCX malware analysis — malicious · b22624074fb5efd4

MALICIOUS

Office (OLE) / .DOCX

162.2 KB Created: 2020-10-16 14:09:00 Authoring application: Microsoft Office Word

MD5: 799d9632251c67dd0f82822e8b05789b SHA-1: 10cfeaeebd01b07c275e324e0222287f44f1f0d7 SHA-256: b22624074fb5efd4b4c7a4882f6a7bf06faa842197e9fc9199e85c8c1fe02b8b

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 VBA macros, including an auto-executing Document_Open macro and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro named 'macros.bas' further supports this. The Emotet family is known for using such techniques to download and execute further stages of malware. The document body content is heavily obfuscated and does not provide clear user-facing text.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9778566-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9778566-0
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` `29095f417e940309e4c3b74017a13ff70f85d23507d6b5296a03fa98c635a78b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15315 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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