Emotet Office (OLE) / .DOCX malware analysis — malicious · 853b5144ea85f6a6

MALICIOUS

Office (OLE) / .DOCX

152.7 KB Created: 2020-10-19 09:55:00 Authoring application: Microsoft Office Word

MD5: d5a03e7d36ed197dbf00523347fac5e6 SHA-1: 549147ccc7bc1a510fc966a287d7dd60f4db8349 SHA-256: 853b5144ea85f6a69ba1d547dbde57640dc286c3cb29cc5070e6ec707f923c53

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The sample was detected as Emotet by ClamAV. Heuristics indicate the presence of VBA macros, specifically a Document_Open auto-exec macro that uses CreateObject. This suggests the macro is designed to download and execute a second-stage payload. No specific URLs or executable files were directly extracted, but the presence of the 'macros.bas' artifact is a strong indicator.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9780434-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9780434-0
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` `1480f6f3dc12ae5544443e21682a29de409fc914bcdbfb39f5c72e71174c3bfb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15487 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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