Emotet Office (OLE) malware analysis — malicious · 9ca124a064add26a

MALICIOUS

Office (OLE)

157.7 KB Created: 2020-09-15 20:00:00 Authoring application: Microsoft Office Word

MD5: d6f0c43d15fbe87ebd337cd98c262692 SHA-1: 572d1b095a1bce03379542361b98d4cfd75728e5 SHA-256: 9ca124a064add26a893cae7c941692b19af05d8f753f265d8ff646552eead7d7

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

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 malicious VBA macro activity. The presence of a 'macros.bas' artifact further supports this. The document likely uses the Document_Open macro to execute a CreateObject call, which is a common technique for Emotet to download and run a second-stage payload.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9761761-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9761761-0
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` `417557a48927398ece814174d936d85f4c7aaebf20a71ff2b1c5a4ebd7420248`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25524 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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