Emotet Office (OLE) / .DOCX malware analysis — malicious · defbca721d585023

MALICIOUS

Office (OLE) / .DOCX

132.1 KB Created: 2020-09-29 22:12:00 Authoring application: Microsoft Office Word

MD5: d1cbe0d0ed018ee391ed327600fc7596 SHA-1: 47d81600985e73024cb09ca1395bf230878623a4 SHA-256: defbca721d5850239ce954155a629ed1728ce578781b3e387d8c6305144f0838

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 VBA macros, including an auto-executing Document_Open macro and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro, specifically detected as 'Doc.Downloader.Emotet-9769437-0', suggests the document's purpose is to download and execute a second-stage payload. The obfuscated document body content does not provide further context on the lure, but the technical indicators are sufficient for attribution.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9769437-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9769437-0
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` `46ea4f5c4c1cab321c0ffaa5340d45e7ba78bb5fcec47c12e0336c19b81c43df`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10333 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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