Emotet Office (OLE) / .DOCX malware analysis — malicious · 5358958a5cc459f7

MALICIOUS

Office (OLE) / .DOCX

176.7 KB Created: 2020-10-16 10:38:00 Authoring application: Microsoft Office Word

MD5: 5da05921ddfbaea34af233931d6a8b20 SHA-1: 8e5951e6e6bc1f342bf4163f3ac03f1932332c32 SHA-256: 5358958a5cc459f7d4cc42bebce6935a868fc951dfdaf4e7b2c5e26aa576ef58

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_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious Office document. The presence of a Document_Open macro that uses CreateObject is a common Emotet delivery technique. This macro likely downloads and executes a secondary payload, consistent with Emotet's behavior. The document body content is obfuscated and does not provide clear user-facing text, but the technical indicators are sufficient for attribution.

Heuristics 7

ClamAV: Doc.Trojan.Emotet-9778443-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Emotet-9778443-1
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` `dae34bf6e418fa0d8b9b1311becc27775cd875aa2c1a1dc0c8de66f7f57fbc42`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15342 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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