Emotet Office (OLE) / .DOCX malware analysis — malicious · 87c5e9b3096c5f62

MALICIOUS

Office (OLE) / .DOCX

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

MD5: b4ce3181dd28d3b129f165a148c2da04 SHA-1: 85f077808e933a633583215868696dd021c3212d SHA-256: 87c5e9b3096c5f62c32a8cf5d8f039d34b3a6332ce4664871f3fba6f90ef0c31

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious macro-based document. The presence of the 'Emotet' family in the ClamAV signature provides a high-confidence family attribution. The macro's likely intent is to download and execute a second-stage payload, a common Emotet delivery technique.

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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