Emotet Office (OLE) / .DOC malware analysis — malicious · 3bd94449432d5726

MALICIOUS

Office (OLE) / .DOC

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

MD5: afe5da8f91f23e1ebaf6a36a140232cd SHA-1: 90ee72a09455327ef2de3d3d909c5eaa25ae3cce SHA-256: 3bd94449432d5726e42cfff86a4fd1df8f7367e3193c17ede42131f54c982bab

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 Document_Open macro that uses CreateObject suggests the execution of a downloader. The ClamAV signature 'Doc.Downloader.Emotet-9769437-0' directly attributes this sample to the Emotet family. The document body appears to be heavily obfuscated or corrupted, but the VBA macro is the primary driver of the malicious behavior, likely downloading and executing a second-stage payload.

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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