Emotet Office (OLE) / .DOC malware analysis — malicious · c27e17fed16ef328

MALICIOUS

Office (OLE) / .DOC

150.9 KB Created: 2020-09-29 22:21:00 Authoring application: Microsoft Office Word

MD5: 0e356a58683ae052fe74103040a93b0c SHA-1: 99e911944337bb0a186e84dbf84150850507cffa SHA-256: c27e17fed16ef328b387d0c7fc967109548e73b05d59197e92896af0c0da3012

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, specifically an auto-executing Document_Open macro that uses CreateObject, strongly indicate malicious intent. The presence of a VBA macro in the macros.bas file, combined with the ClamAV signature, points to the Emotet family. The macro is designed to execute automatically when the document is opened, likely to download and execute a second-stage payload.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9769269-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9769269-0
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` `6964ee7cb7e1027f31dcb7516e30ae7e28aa805d4dfa9e69e1986476c3bc52e7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10319 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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